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Finding the Fourth Proportional to 619,876.90, 929,454 and 240,354.28

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Solution

The fourth proportional to 619,876.90, 929,454 and 240,354.28 is: 360,391.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,876.90 : 929,454 = 240,354.28 : x
  2. Step 2: Convert to fraction form
    619,876.90/929,454 = 240,354.28/x
  3. Step 3: Cross multiply
    619,876.90x = 929,454 × 240,354.28
  4. Step 4: Simplify right side
    619,876.90x = 223,398,246,963.12
  5. Step 5: Solve for x
    x = 223,398,246,963.12/619,876.90
  6. Step 6: Final answer
    x = 360,391.31

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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.