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Finding the Fourth Proportional to 484.98, 728.25 and 444.42

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Solution

The fourth proportional to 484.98, 728.25 and 444.42 is: 667.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.98 : 728.25 = 444.42 : x
  2. Step 2: Convert to fraction form
    484.98/728.25 = 444.42/x
  3. Step 3: Cross multiply
    484.98x = 728.25 × 444.42
  4. Step 4: Simplify right side
    484.98x = 323,648.87
  5. Step 5: Solve for x
    x = 323,648.87/484.98
  6. Step 6: Final answer
    x = 667.34

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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.