Home / 578,759.10-868,138.65-204,819.90

Finding the Fourth Proportional to 578,759.10, 868,138.65 and 204,819.90

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Solution

The fourth proportional to 578,759.10, 868,138.65 and 204,819.90 is: 307,229.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,759.10 : 868,138.65 = 204,819.90 : x
  2. Step 2: Convert to fraction form
    578,759.10/868,138.65 = 204,819.90/x
  3. Step 3: Cross multiply
    578,759.10x = 868,138.65 × 204,819.90
  4. Step 4: Simplify right side
    578,759.10x = 177,812,071,479.14
  5. Step 5: Solve for x
    x = 177,812,071,479.14/578,759.10
  6. Step 6: Final answer
    x = 307,229.85

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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.