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Finding the Fourth Proportional to 610,802.12, 915,760.20 and 410,625.92

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Solution

The fourth proportional to 610,802.12, 915,760.20 and 410,625.92 is: 615,641.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,802.12 : 915,760.20 = 410,625.92 : x
  2. Step 2: Convert to fraction form
    610,802.12/915,760.20 = 410,625.92/x
  3. Step 3: Cross multiply
    610,802.12x = 915,760.20 × 410,625.92
  4. Step 4: Simplify right side
    610,802.12x = 376,034,874,624.38
  5. Step 5: Solve for x
    x = 376,034,874,624.38/610,802.12
  6. Step 6: Final answer
    x = 615,641.08

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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.