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Finding the Fourth Proportional to 578,761.70, 868,142.55 and 204,736.10

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Solution

The fourth proportional to 578,761.70, 868,142.55 and 204,736.10 is: 307,104.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,761.70 : 868,142.55 = 204,736.10 : x
  2. Step 2: Convert to fraction form
    578,761.70/868,142.55 = 204,736.10/x
  3. Step 3: Cross multiply
    578,761.70x = 868,142.55 × 204,736.10
  4. Step 4: Simplify right side
    578,761.70x = 177,740,119,931.06
  5. Step 5: Solve for x
    x = 177,740,119,931.06/578,761.70
  6. Step 6: Final answer
    x = 307,104.15

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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.