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Finding the Fourth Proportional to 500.28, 754.26 and 493.80

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Solution

The fourth proportional to 500.28, 754.26 and 493.80 is: 744.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    500.28 : 754.26 = 493.80 : x
  2. Step 2: Convert to fraction form
    500.28/754.26 = 493.80/x
  3. Step 3: Cross multiply
    500.28x = 754.26 × 493.80
  4. Step 4: Simplify right side
    500.28x = 372,453.59
  5. Step 5: Solve for x
    x = 372,453.59/500.28
  6. Step 6: Final answer
    x = 744.49

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.