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Finding the Fourth Proportional to 1,472.77, 2,209.20 and 498.94

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Solution

The fourth proportional to 1,472.77, 2,209.20 and 498.94 is: 748.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,472.77 : 2,209.20 = 498.94 : x
  2. Step 2: Convert to fraction form
    1,472.77/2,209.20 = 498.94/x
  3. Step 3: Cross multiply
    1,472.77x = 2,209.20 × 498.94
  4. Step 4: Simplify right side
    1,472.77x = 1,102,264.68
  5. Step 5: Solve for x
    x = 1,102,264.68/1,472.77
  6. Step 6: Final answer
    x = 748.43

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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.