Home / 749,400.20-1,034,209.88-443,651.92

Finding the Fourth Proportional to 749,400.20, 1,034,209.88 and 443,651.92

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Solution

The fourth proportional to 749,400.20, 1,034,209.88 and 443,651.92 is: 612,261.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,400.20 : 1,034,209.88 = 443,651.92 : x
  2. Step 2: Convert to fraction form
    749,400.20/1,034,209.88 = 443,651.92/x
  3. Step 3: Cross multiply
    749,400.20x = 1,034,209.88 × 443,651.92
  4. Step 4: Simplify right side
    749,400.20x = 458,829,198,944.97
  5. Step 5: Solve for x
    x = 458,829,198,944.97/749,400.20
  6. Step 6: Final answer
    x = 612,261.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.