Finding the Fourth Proportional to 727,553.97, 1,090,956.74 and 390,878.28
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Solution
The fourth proportional to 727,553.97, 1,090,956.74 and 390,878.28 is: 586,116.37
Step by Step Solution
- Step 1: Write the proportion equation
727,553.97 : 1,090,956.74 = 390,878.28 : x - Step 2: Convert to fraction form
727,553.97/1,090,956.74 = 390,878.28/x - Step 3: Cross multiply
727,553.97x = 1,090,956.74 × 390,878.28 - Step 4: Simplify right side
727,553.97x = 426,431,292,131.22 - Step 5: Solve for x
x = 426,431,292,131.22/727,553.97 - Step 6: Final answer
x = 586,116.37
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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.