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Finding the Fourth Proportional to 546.64, 757.48 and 539.96

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Solution

The fourth proportional to 546.64, 757.48 and 539.96 is: 748.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.64 : 757.48 = 539.96 : x
  2. Step 2: Convert to fraction form
    546.64/757.48 = 539.96/x
  3. Step 3: Cross multiply
    546.64x = 757.48 × 539.96
  4. Step 4: Simplify right side
    546.64x = 409,008.90
  5. Step 5: Solve for x
    x = 409,008.90/546.64
  6. Step 6: Final answer
    x = 748.22

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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.