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Finding the Fourth Proportional to 546.42, 759.28 and 539.52

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Solution

The fourth proportional to 546.42, 759.28 and 539.52 is: 749.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.42 : 759.28 = 539.52 : x
  2. Step 2: Convert to fraction form
    546.42/759.28 = 539.52/x
  3. Step 3: Cross multiply
    546.42x = 759.28 × 539.52
  4. Step 4: Simplify right side
    546.42x = 409,646.75
  5. Step 5: Solve for x
    x = 409,646.75/546.42
  6. Step 6: Final answer
    x = 749.69

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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.