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Finding the Fourth Proportional to 625,341.60, 862,972.25 and 338,861.48

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Solution

The fourth proportional to 625,341.60, 862,972.25 and 338,861.48 is: 467,629.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,341.60 : 862,972.25 = 338,861.48 : x
  2. Step 2: Convert to fraction form
    625,341.60/862,972.25 = 338,861.48/x
  3. Step 3: Cross multiply
    625,341.60x = 862,972.25 × 338,861.48
  4. Step 4: Simplify right side
    625,341.60x = 292,428,047,824.76
  5. Step 5: Solve for x
    x = 292,428,047,824.76/625,341.60
  6. Step 6: Final answer
    x = 467,629.29

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.