Home / 493,380.20-739,811.10-177,789.80

Finding the Fourth Proportional to 493,380.20, 739,811.10 and 177,789.80

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Solution

The fourth proportional to 493,380.20, 739,811.10 and 177,789.80 is: 266,591.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,380.20 : 739,811.10 = 177,789.80 : x
  2. Step 2: Convert to fraction form
    493,380.20/739,811.10 = 177,789.80/x
  3. Step 3: Cross multiply
    493,380.20x = 739,811.10 × 177,789.80
  4. Step 4: Simplify right side
    493,380.20x = 131,530,867,506.78
  5. Step 5: Solve for x
    x = 131,530,867,506.78/493,380.20
  6. Step 6: Final answer
    x = 266,591.30

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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.