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Finding the Fourth Proportional to 484.72, 725.69 and 450.55

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Solution

The fourth proportional to 484.72, 725.69 and 450.55 is: 674.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.72 : 725.69 = 450.55 : x
  2. Step 2: Convert to fraction form
    484.72/725.69 = 450.55/x
  3. Step 3: Cross multiply
    484.72x = 725.69 × 450.55
  4. Step 4: Simplify right side
    484.72x = 326,955.56
  5. Step 5: Solve for x
    x = 326,955.56/484.72
  6. Step 6: Final answer
    x = 674.52

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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.