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Finding the Fourth Proportional to 635,211.92, 876,615 and 348,753.80

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Solution

The fourth proportional to 635,211.92, 876,615 and 348,753.80 is: 481,292.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,211.92 : 876,615 = 348,753.80 : x
  2. Step 2: Convert to fraction form
    635,211.92/876,615 = 348,753.80/x
  3. Step 3: Cross multiply
    635,211.92x = 876,615 × 348,753.80
  4. Step 4: Simplify right side
    635,211.92x = 305,722,812,387
  5. Step 5: Solve for x
    x = 305,722,812,387/635,211.92
  6. Step 6: Final answer
    x = 481,292.62

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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.