Home / 547,280.20-819,365.10-485,072.20

Finding the Fourth Proportional to 547,280.20, 819,365.10 and 485,072.20

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Solution

The fourth proportional to 547,280.20, 819,365.10 and 485,072.20 is: 726,229.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,280.20 : 819,365.10 = 485,072.20 : x
  2. Step 2: Convert to fraction form
    547,280.20/819,365.10 = 485,072.20/x
  3. Step 3: Cross multiply
    547,280.20x = 819,365.10 × 485,072.20
  4. Step 4: Simplify right side
    547,280.20x = 397,451,231,660.22
  5. Step 5: Solve for x
    x = 397,451,231,660.22/547,280.20
  6. Step 6: Final answer
    x = 726,229.88

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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.