Home / 1,425,560.27-2,138,659.52-478,905.17

Finding the Fourth Proportional to 1,425,560.27, 2,138,659.52 and 478,905.17

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Solution

The fourth proportional to 1,425,560.27, 2,138,659.52 and 478,905.17 is: 718,464.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,560.27 : 2,138,659.52 = 478,905.17 : x
  2. Step 2: Convert to fraction form
    1,425,560.27/2,138,659.52 = 478,905.17/x
  3. Step 3: Cross multiply
    1,425,560.27x = 2,138,659.52 × 478,905.17
  4. Step 4: Simplify right side
    1,425,560.27x = 1,024,215,087,909.90
  5. Step 5: Solve for x
    x = 1,024,215,087,909.90/1,425,560.27
  6. Step 6: Final answer
    x = 718,464.95

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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.