Home / 721,778.61-1,082,175.84-366,106.80

Finding the Fourth Proportional to 721,778.61, 1,082,175.84 and 366,106.80

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Solution

The fourth proportional to 721,778.61, 1,082,175.84 and 366,106.80 is: 548,910.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,778.61 : 1,082,175.84 = 366,106.80 : x
  2. Step 2: Convert to fraction form
    721,778.61/1,082,175.84 = 366,106.80/x
  3. Step 3: Cross multiply
    721,778.61x = 1,082,175.84 × 366,106.80
  4. Step 4: Simplify right side
    721,778.61x = 396,191,933,819.71
  5. Step 5: Solve for x
    x = 396,191,933,819.71/721,778.61
  6. Step 6: Final answer
    x = 548,910.61

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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.