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Finding the Fourth Proportional to 610,755.29, 915,841.28 and 358,112.71

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Solution

The fourth proportional to 610,755.29, 915,841.28 and 358,112.71 is: 536,998.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,755.29 : 915,841.28 = 358,112.71 : x
  2. Step 2: Convert to fraction form
    610,755.29/915,841.28 = 358,112.71/x
  3. Step 3: Cross multiply
    610,755.29x = 915,841.28 × 358,112.71
  4. Step 4: Simplify right side
    610,755.29x = 327,974,398,620.87
  5. Step 5: Solve for x
    x = 327,974,398,620.87/610,755.29
  6. Step 6: Final answer
    x = 536,998.05

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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.