Home / 578,766.10-868,149.15-204,826.90

Finding the Fourth Proportional to 578,766.10, 868,149.15 and 204,826.90

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Solution

The fourth proportional to 578,766.10, 868,149.15 and 204,826.90 is: 307,240.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,766.10 : 868,149.15 = 204,826.90 : x
  2. Step 2: Convert to fraction form
    578,766.10/868,149.15 = 204,826.90/x
  3. Step 3: Cross multiply
    578,766.10x = 868,149.15 × 204,826.90
  4. Step 4: Simplify right side
    578,766.10x = 177,820,299,132.14
  5. Step 5: Solve for x
    x = 177,820,299,132.14/578,766.10
  6. Step 6: Final answer
    x = 307,240.35

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Double scale
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Similar ratio
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1.5x scale

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.