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Finding the Fourth Proportional to 625,342.60, 862,973.63 and 338,862.48

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Solution

The fourth proportional to 625,342.60, 862,973.63 and 338,862.48 is: 467,630.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,342.60 : 862,973.63 = 338,862.48 : x
  2. Step 2: Convert to fraction form
    625,342.60/862,973.63 = 338,862.48/x
  3. Step 3: Cross multiply
    625,342.60x = 862,973.63 × 338,862.48
  4. Step 4: Simplify right side
    625,342.60x = 292,429,384,436.40
  5. Step 5: Solve for x
    x = 292,429,384,436.40/625,342.60
  6. Step 6: Final answer
    x = 467,630.68

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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.