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Finding the Fourth Proportional to 502.97, 751.89 and 450.79

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Solution

The fourth proportional to 502.97, 751.89 and 450.79 is: 673.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    502.97 : 751.89 = 450.79 : x
  2. Step 2: Convert to fraction form
    502.97/751.89 = 450.79/x
  3. Step 3: Cross multiply
    502.97x = 751.89 × 450.79
  4. Step 4: Simplify right side
    502.97x = 338,941.77
  5. Step 5: Solve for x
    x = 338,941.77/502.97
  6. Step 6: Final answer
    x = 673.89

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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.