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Finding the Fourth Proportional to 655.81, 902.67 and 544.03

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Solution

The fourth proportional to 655.81, 902.67 and 544.03 is: 748.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    655.81 : 902.67 = 544.03 : x
  2. Step 2: Convert to fraction form
    655.81/902.67 = 544.03/x
  3. Step 3: Cross multiply
    655.81x = 902.67 × 544.03
  4. Step 4: Simplify right side
    655.81x = 491,079.56
  5. Step 5: Solve for x
    x = 491,079.56/655.81
  6. Step 6: Final answer
    x = 748.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.