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Finding the Fourth Proportional to 625,691.74, 938,808.12 and 265,941.63

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Solution

The fourth proportional to 625,691.74, 938,808.12 and 265,941.63 is: 399,027.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,691.74 : 938,808.12 = 265,941.63 : x
  2. Step 2: Convert to fraction form
    625,691.74/938,808.12 = 265,941.63/x
  3. Step 3: Cross multiply
    625,691.74x = 938,808.12 × 265,941.63
  4. Step 4: Simplify right side
    625,691.74x = 249,668,162,687.32
  5. Step 5: Solve for x
    x = 249,668,162,687.32/625,691.74
  6. Step 6: Final answer
    x = 399,027.42

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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.