Home / 454,966.20-682,481.70-139,422.60

Finding the Fourth Proportional to 454,966.20, 682,481.70 and 139,422.60

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Solution

The fourth proportional to 454,966.20, 682,481.70 and 139,422.60 is: 209,143.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,966.20 : 682,481.70 = 139,422.60 : x
  2. Step 2: Convert to fraction form
    454,966.20/682,481.70 = 139,422.60/x
  3. Step 3: Cross multiply
    454,966.20x = 682,481.70 × 139,422.60
  4. Step 4: Simplify right side
    454,966.20x = 95,153,373,066.42
  5. Step 5: Solve for x
    x = 95,153,373,066.42/454,966.20
  6. Step 6: Final answer
    x = 209,143.83

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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.