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Finding the Fourth Proportional to 544.95, 757.25 and 539.31

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Solution

The fourth proportional to 544.95, 757.25 and 539.31 is: 749.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.95 : 757.25 = 539.31 : x
  2. Step 2: Convert to fraction form
    544.95/757.25 = 539.31/x
  3. Step 3: Cross multiply
    544.95x = 757.25 × 539.31
  4. Step 4: Simplify right side
    544.95x = 408,389.80
  5. Step 5: Solve for x
    x = 408,389.80/544.95
  6. Step 6: Final answer
    x = 749.41

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.