Home / 787,660.20-1,181,490.30-366,978.60

Finding the Fourth Proportional to 787,660.20, 1,181,490.30 and 366,978.60

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Solution

The fourth proportional to 787,660.20, 1,181,490.30 and 366,978.60 is: 550,467.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,660.20 : 1,181,490.30 = 366,978.60 : x
  2. Step 2: Convert to fraction form
    787,660.20/1,181,490.30 = 366,978.60/x
  3. Step 3: Cross multiply
    787,660.20x = 1,181,490.30 × 366,978.60
  4. Step 4: Simplify right side
    787,660.20x = 433,581,656,207.58
  5. Step 5: Solve for x
    x = 433,581,656,207.58/787,660.20
  6. Step 6: Final answer
    x = 550,467.90

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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.