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Finding the Fourth Proportional to 625,033.67, 862,481.72 and 353,131.25

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Solution

The fourth proportional to 625,033.67, 862,481.72 and 353,131.25 is: 487,284.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,033.67 : 862,481.72 = 353,131.25 : x
  2. Step 2: Convert to fraction form
    625,033.67/862,481.72 = 353,131.25/x
  3. Step 3: Cross multiply
    625,033.67x = 862,481.72 × 353,131.25
  4. Step 4: Simplify right side
    625,033.67x = 304,569,244,456.17
  5. Step 5: Solve for x
    x = 304,569,244,456.17/625,033.67
  6. Step 6: Final answer
    x = 487,284.54

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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.