Finding the Fourth Proportional to 758,553.07, 1,138,278.49 and 279,117.54
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Solution
The fourth proportional to 758,553.07, 1,138,278.49 and 279,117.54 is: 418,841.48
Step by Step Solution
- Step 1: Write the proportion equation
758,553.07 : 1,138,278.49 = 279,117.54 : x - Step 2: Convert to fraction form
758,553.07/1,138,278.49 = 279,117.54/x - Step 3: Cross multiply
758,553.07x = 1,138,278.49 × 279,117.54 - Step 4: Simplify right side
758,553.07x = 317,713,491,963.72 - Step 5: Solve for x
x = 317,713,491,963.72/758,553.07 - Step 6: Final answer
x = 418,841.48
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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.