Home / 492,231.28-679,279.15-265,876.78

Finding the Fourth Proportional to 492,231.28, 679,279.15 and 265,876.78

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Solution

The fourth proportional to 492,231.28, 679,279.15 and 265,876.78 is: 366,909.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,231.28 : 679,279.15 = 265,876.78 : x
  2. Step 2: Convert to fraction form
    492,231.28/679,279.15 = 265,876.78/x
  3. Step 3: Cross multiply
    492,231.28x = 679,279.15 × 265,876.78
  4. Step 4: Simplify right side
    492,231.28x = 180,604,553,123.14
  5. Step 5: Solve for x
    x = 180,604,553,123.14/492,231.28
  6. Step 6: Final answer
    x = 366,909.95

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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.