Home / 521,423.07-781,937.76-240,743.49

Finding the Fourth Proportional to 521,423.07, 781,937.76 and 240,743.49

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Solution

The fourth proportional to 521,423.07, 781,937.76 and 240,743.49 is: 361,024.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,423.07 : 781,937.76 = 240,743.49 : x
  2. Step 2: Convert to fraction form
    521,423.07/781,937.76 = 240,743.49/x
  3. Step 3: Cross multiply
    521,423.07x = 781,937.76 × 240,743.49
  4. Step 4: Simplify right side
    521,423.07x = 188,246,425,305.18
  5. Step 5: Solve for x
    x = 188,246,425,305.18/521,423.07
  6. Step 6: Final answer
    x = 361,024.35

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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.