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Finding the Fourth Proportional to 501.33, 747.08 and 484.80

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Solution

The fourth proportional to 501.33, 747.08 and 484.80 is: 722.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    501.33 : 747.08 = 484.80 : x
  2. Step 2: Convert to fraction form
    501.33/747.08 = 484.80/x
  3. Step 3: Cross multiply
    501.33x = 747.08 × 484.80
  4. Step 4: Simplify right side
    501.33x = 362,180.98
  5. Step 5: Solve for x
    x = 362,180.98/501.33
  6. Step 6: Final answer
    x = 722.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.