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Finding the Fourth Proportional to 610,689.20, 915,590.93 and 410,513.09

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Solution

The fourth proportional to 610,689.20, 915,590.93 and 410,513.09 is: 615,471.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,689.20 : 915,590.93 = 410,513.09 : x
  2. Step 2: Convert to fraction form
    610,689.20/915,590.93 = 410,513.09/x
  3. Step 3: Cross multiply
    610,689.20x = 915,590.93 × 410,513.09
  4. Step 4: Simplify right side
    610,689.20x = 375,862,061,850.27
  5. Step 5: Solve for x
    x = 375,862,061,850.27/610,689.20
  6. Step 6: Final answer
    x = 615,471.93

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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.