Home / 521,422.82-781,937.39-240,743.24

Finding the Fourth Proportional to 521,422.82, 781,937.39 and 240,743.24

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Solution

The fourth proportional to 521,422.82, 781,937.39 and 240,743.24 is: 361,023.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,422.82 : 781,937.39 = 240,743.24 : x
  2. Step 2: Convert to fraction form
    521,422.82/781,937.39 = 240,743.24/x
  3. Step 3: Cross multiply
    521,422.82x = 781,937.39 × 240,743.24
  4. Step 4: Simplify right side
    521,422.82x = 188,246,139,542.03
  5. Step 5: Solve for x
    x = 188,246,139,542.03/521,422.82
  6. Step 6: Final answer
    x = 361,023.98

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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.