Finding the Fourth Proportional to 872,221.08, 1,308,331.62 and 273,187.20
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Solution
The fourth proportional to 872,221.08, 1,308,331.62 and 273,187.20 is: 409,780.80
Step by Step Solution
- Step 1: Write the proportion equation
872,221.08 : 1,308,331.62 = 273,187.20 : x - Step 2: Convert to fraction form
872,221.08/1,308,331.62 = 273,187.20/x - Step 3: Cross multiply
872,221.08x = 1,308,331.62 × 273,187.20 - Step 4: Simplify right side
872,221.08x = 357,419,451,939.26 - Step 5: Solve for x
x = 357,419,451,939.26/872,221.08 - Step 6: Final answer
x = 409,780.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.