Home / 1,478,133.90-2,217,200.85-1,123,839.90

Finding the Fourth Proportional to 1,478,133.90, 2,217,200.85 and 1,123,839.90

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Solution

The fourth proportional to 1,478,133.90, 2,217,200.85 and 1,123,839.90 is: 1,685,759.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,133.90 : 2,217,200.85 = 1,123,839.90 : x
  2. Step 2: Convert to fraction form
    1,478,133.90/2,217,200.85 = 1,123,839.90/x
  3. Step 3: Cross multiply
    1,478,133.90x = 2,217,200.85 × 1,123,839.90
  4. Step 4: Simplify right side
    1,478,133.90x = 2,491,778,781,543.92
  5. Step 5: Solve for x
    x = 2,491,778,781,543.92/1,478,133.90
  6. Step 6: Final answer
    x = 1,685,759.85

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Similar ratio
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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.