Calculated Industries 4400 - Manual (Page 35)

RATIo AND pRopoRTIoN
fUNCTIoNS
With the Ratio and Proportion keys you
can find:
• an x value, given a Ratio and y value
• a y value, given a Ratio and x value
• a Ratio, given values for x and y
Ratios and Proportions can be
calculated with or without dimensional
units.
If the Ratio of nitrogen to hydrogen is
1:3, and a sample of ammonia has 1,563
nitrogen atoms, how many hydrogen
atoms are present?
KeYsTrOKe disPlaY
OO 0.
1. Enter the Ratio:
1ga (x value) X 1.
3gp (y value) Y 3.
2. Show the Ratio:
gh (X:Y) 1 = 3.0000
3. Enter the known number of
nitrogen atoms:
1563ga (X) X 1563.
4. Solve for the unknown number of
hydrogen atoms:
gp (Y) Y 4689.0000