Finding the Fourth Proportional to 737,385.12, 1,105,809.82 and 257,478.12
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Solution
The fourth proportional to 737,385.12, 1,105,809.82 and 257,478.12 is: 386,123.65
Step by Step Solution
- Step 1: Write the proportion equation
737,385.12 : 1,105,809.82 = 257,478.12 : x - Step 2: Convert to fraction form
737,385.12/1,105,809.82 = 257,478.12/x - Step 3: Cross multiply
737,385.12x = 1,105,809.82 × 257,478.12 - Step 4: Simplify right side
737,385.12x = 284,721,833,531.14 - Step 5: Solve for x
x = 284,721,833,531.14/737,385.12 - Step 6: Final answer
x = 386,123.65
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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.