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Finding the Fourth Proportional to 547.80, 819.54 and 500.28

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Solution

The fourth proportional to 547.80, 819.54 and 500.28 is: 748.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.80 : 819.54 = 500.28 : x
  2. Step 2: Convert to fraction form
    547.80/819.54 = 500.28/x
  3. Step 3: Cross multiply
    547.80x = 819.54 × 500.28
  4. Step 4: Simplify right side
    547.80x = 409,999.47
  5. Step 5: Solve for x
    x = 409,999.47/547.80
  6. Step 6: Final answer
    x = 748.45

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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.