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Finding the Fourth Proportional to 502.68, 749.63 and 484.46

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Solution

The fourth proportional to 502.68, 749.63 and 484.46 is: 722.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    502.68 : 749.63 = 484.46 : x
  2. Step 2: Convert to fraction form
    502.68/749.63 = 484.46/x
  3. Step 3: Cross multiply
    502.68x = 749.63 × 484.46
  4. Step 4: Simplify right side
    502.68x = 363,159.58
  5. Step 5: Solve for x
    x = 363,159.58/502.68
  6. Step 6: Final answer
    x = 722.45

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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.