Finding the Fourth Proportional to 721,073.16, 995,205.87 and 434,593.62
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Solution
The fourth proportional to 721,073.16, 995,205.87 and 434,593.62 is: 599,814.48
Step by Step Solution
- Step 1: Write the proportion equation
721,073.16 : 995,205.87 = 434,593.62 : x - Step 2: Convert to fraction form
721,073.16/995,205.87 = 434,593.62/x - Step 3: Cross multiply
721,073.16x = 995,205.87 × 434,593.62 - Step 4: Simplify right side
721,073.16x = 432,510,121,688.55 - Step 5: Solve for x
x = 432,510,121,688.55/721,073.16 - Step 6: Final answer
x = 599,814.48
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.