Home / 682,747.20-1,024,120.80-443,246.40

Finding the Fourth Proportional to 682,747.20, 1,024,120.80 and 443,246.40

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Solution

The fourth proportional to 682,747.20, 1,024,120.80 and 443,246.40 is: 664,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,747.20 : 1,024,120.80 = 443,246.40 : x
  2. Step 2: Convert to fraction form
    682,747.20/1,024,120.80 = 443,246.40/x
  3. Step 3: Cross multiply
    682,747.20x = 1,024,120.80 × 443,246.40
  4. Step 4: Simplify right side
    682,747.20x = 453,937,857,765.12
  5. Step 5: Solve for x
    x = 453,937,857,765.12/682,747.20
  6. Step 6: Final answer
    x = 664,869.60

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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.