Home / 792,136.20-1,188,204.30-318,577.80

Finding the Fourth Proportional to 792,136.20, 1,188,204.30 and 318,577.80

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Solution

The fourth proportional to 792,136.20, 1,188,204.30 and 318,577.80 is: 477,866.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,136.20 : 1,188,204.30 = 318,577.80 : x
  2. Step 2: Convert to fraction form
    792,136.20/1,188,204.30 = 318,577.80/x
  3. Step 3: Cross multiply
    792,136.20x = 1,188,204.30 × 318,577.80
  4. Step 4: Simplify right side
    792,136.20x = 378,535,511,844.54
  5. Step 5: Solve for x
    x = 378,535,511,844.54/792,136.20
  6. Step 6: Final answer
    x = 477,866.70

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Double scale
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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.