Home / 864,046.80-1,295,422.20-443,624.40

Finding the Fourth Proportional to 864,046.80, 1,295,422.20 and 443,624.40

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Solution

The fourth proportional to 864,046.80, 1,295,422.20 and 443,624.40 is: 665,103.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,046.80 : 1,295,422.20 = 443,624.40 : x
  2. Step 2: Convert to fraction form
    864,046.80/1,295,422.20 = 443,624.40/x
  3. Step 3: Cross multiply
    864,046.80x = 1,295,422.20 × 443,624.40
  4. Step 4: Simplify right side
    864,046.80x = 574,680,896,221.68
  5. Step 5: Solve for x
    x = 574,680,896,221.68/864,046.80
  6. Step 6: Final answer
    x = 665,103.90

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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.