Home / 840,402.38-1,260,614.51-279,436.88

Finding the Fourth Proportional to 840,402.38, 1,260,614.51 and 279,436.88

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Solution

The fourth proportional to 840,402.38, 1,260,614.51 and 279,436.88 is: 419,158.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,402.38 : 1,260,614.51 = 279,436.88 : x
  2. Step 2: Convert to fraction form
    840,402.38/1,260,614.51 = 279,436.88/x
  3. Step 3: Cross multiply
    840,402.38x = 1,260,614.51 × 279,436.88
  4. Step 4: Simplify right side
    840,402.38x = 352,262,177,856.87
  5. Step 5: Solve for x
    x = 352,262,177,856.87/840,402.38
  6. Step 6: Final answer
    x = 419,158.95

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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.