Home / 578,520.20-867,780.30-204,494.60

Finding the Fourth Proportional to 578,520.20, 867,780.30 and 204,494.60

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Solution

The fourth proportional to 578,520.20, 867,780.30 and 204,494.60 is: 306,741.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,520.20 : 867,780.30 = 204,494.60 : x
  2. Step 2: Convert to fraction form
    578,520.20/867,780.30 = 204,494.60/x
  3. Step 3: Cross multiply
    578,520.20x = 867,780.30 × 204,494.60
  4. Step 4: Simplify right side
    578,520.20x = 177,456,385,336.38
  5. Step 5: Solve for x
    x = 177,456,385,336.38/578,520.20
  6. Step 6: Final answer
    x = 306,741.90

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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.