Finding the Fourth Proportional to 718,552.92, 991,589.94 and 396,292.80
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Solution
The fourth proportional to 718,552.92, 991,589.94 and 396,292.80 is: 546,876.84
Step by Step Solution
- Step 1: Write the proportion equation
718,552.92 : 991,589.94 = 396,292.80 : x - Step 2: Convert to fraction form
718,552.92/991,589.94 = 396,292.80/x - Step 3: Cross multiply
718,552.92x = 991,589.94 × 396,292.80 - Step 4: Simplify right side
718,552.92x = 392,959,953,774.43 - Step 5: Solve for x
x = 392,959,953,774.43/718,552.92 - Step 6: Final answer
x = 546,876.84
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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.