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Finding the Fourth Proportional to 610.80, 843.32 and 548.44

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Solution

The fourth proportional to 610.80, 843.32 and 548.44 is: 757.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    610.80 : 843.32 = 548.44 : x
  2. Step 2: Convert to fraction form
    610.80/843.32 = 548.44/x
  3. Step 3: Cross multiply
    610.80x = 843.32 × 548.44
  4. Step 4: Simplify right side
    610.80x = 462,510.42
  5. Step 5: Solve for x
    x = 462,510.42/610.80
  6. Step 6: Final answer
    x = 757.22

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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.