Home / 682,691.50-1,023,720.48-398,463.86

Finding the Fourth Proportional to 682,691.50, 1,023,720.48 and 398,463.86

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Solution

The fourth proportional to 682,691.50, 1,023,720.48 and 398,463.86 is: 597,510.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,691.50 : 1,023,720.48 = 398,463.86 : x
  2. Step 2: Convert to fraction form
    682,691.50/1,023,720.48 = 398,463.86/x
  3. Step 3: Cross multiply
    682,691.50x = 1,023,720.48 × 398,463.86
  4. Step 4: Simplify right side
    682,691.50x = 407,915,614,021.85
  5. Step 5: Solve for x
    x = 407,915,614,021.85/682,691.50
  6. Step 6: Final answer
    x = 597,510.90

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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.