Finding the Fourth Proportional to 396,805.97, 547,593.80 and 215,520.92
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Solution
The fourth proportional to 396,805.97, 547,593.80 and 215,520.92 is: 297,419.72
Step by Step Solution
- Step 1: Write the proportion equation
396,805.97 : 547,593.80 = 215,520.92 : x - Step 2: Convert to fraction form
396,805.97/547,593.80 = 215,520.92/x - Step 3: Cross multiply
396,805.97x = 547,593.80 × 215,520.92 - Step 4: Simplify right side
396,805.97x = 118,017,919,562.30 - Step 5: Solve for x
x = 118,017,919,562.30/396,805.97 - Step 6: Final answer
x = 297,419.72
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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.