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Finding the Fourth Proportional to 547,665.28, 819,983.04 and 280,850.56

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Solution

The fourth proportional to 547,665.28, 819,983.04 and 280,850.56 is: 420,498.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,665.28 : 819,983.04 = 280,850.56 : x
  2. Step 2: Convert to fraction form
    547,665.28/819,983.04 = 280,850.56/x
  3. Step 3: Cross multiply
    547,665.28x = 819,983.04 × 280,850.56
  4. Step 4: Simplify right side
    547,665.28x = 230,292,695,974.50
  5. Step 5: Solve for x
    x = 230,292,695,974.50/547,665.28
  6. Step 6: Final answer
    x = 420,498.99

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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.