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Finding the Fourth Proportional to 625,340.88, 862,973.40 and 338,860.88

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Solution

The fourth proportional to 625,340.88, 862,973.40 and 338,860.88 is: 467,629.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,340.88 : 862,973.40 = 338,860.88 : x
  2. Step 2: Convert to fraction form
    625,340.88/862,973.40 = 338,860.88/x
  3. Step 3: Cross multiply
    625,340.88x = 862,973.40 × 338,860.88
  4. Step 4: Simplify right side
    625,340.88x = 292,427,925,740.59
  5. Step 5: Solve for x
    x = 292,427,925,740.59/625,340.88
  6. Step 6: Final answer
    x = 467,629.63

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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.