Home / 625,110.13-862,651.20-338,631.40

Finding the Fourth Proportional to 625,110.13, 862,651.20 and 338,631.40

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Solution

The fourth proportional to 625,110.13, 862,651.20 and 338,631.40 is: 467,310.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,110.13 : 862,651.20 = 338,631.40 : x
  2. Step 2: Convert to fraction form
    625,110.13/862,651.20 = 338,631.40/x
  3. Step 3: Cross multiply
    625,110.13x = 862,651.20 × 338,631.40
  4. Step 4: Simplify right side
    625,110.13x = 292,120,783,567.68
  5. Step 5: Solve for x
    x = 292,120,783,567.68/625,110.13
  6. Step 6: Final answer
    x = 467,310.91

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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.