Home / 1,478,117.70-2,217,176.55-1,331,151.30

Finding the Fourth Proportional to 1,478,117.70, 2,217,176.55 and 1,331,151.30

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Solution

The fourth proportional to 1,478,117.70, 2,217,176.55 and 1,331,151.30 is: 1,996,726.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,117.70 : 2,217,176.55 = 1,331,151.30 : x
  2. Step 2: Convert to fraction form
    1,478,117.70/2,217,176.55 = 1,331,151.30/x
  3. Step 3: Cross multiply
    1,478,117.70x = 2,217,176.55 × 1,331,151.30
  4. Step 4: Simplify right side
    1,478,117.70x = 2,951,397,446,862.01
  5. Step 5: Solve for x
    x = 2,951,397,446,862.01/1,478,117.70
  6. Step 6: Final answer
    x = 1,996,726.95

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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.