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Finding the Fourth Proportional to 624,930.30, 861,867.27 and 488,753.10

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Solution

The fourth proportional to 624,930.30, 861,867.27 and 488,753.10 is: 674,059.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,930.30 : 861,867.27 = 488,753.10 : x
  2. Step 2: Convert to fraction form
    624,930.30/861,867.27 = 488,753.10/x
  3. Step 3: Cross multiply
    624,930.30x = 861,867.27 × 488,753.10
  4. Step 4: Simplify right side
    624,930.30x = 421,240,300,001.04
  5. Step 5: Solve for x
    x = 421,240,300,001.04/624,930.30
  6. Step 6: Final answer
    x = 674,059.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.