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Finding the Fourth Proportional to 662.98, 911.13 and 544.75

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Solution

The fourth proportional to 662.98, 911.13 and 544.75 is: 748.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.98 : 911.13 = 544.75 : x
  2. Step 2: Convert to fraction form
    662.98/911.13 = 544.75/x
  3. Step 3: Cross multiply
    662.98x = 911.13 × 544.75
  4. Step 4: Simplify right side
    662.98x = 496,335.79
  5. Step 5: Solve for x
    x = 496,335.79/662.98
  6. Step 6: Final answer
    x = 748.65

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.