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Finding the Fourth Proportional to 546.60, 752.04 and 427.80

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Solution

The fourth proportional to 546.60, 752.04 and 427.80 is: 588.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.60 : 752.04 = 427.80 : x
  2. Step 2: Convert to fraction form
    546.60/752.04 = 427.80/x
  3. Step 3: Cross multiply
    546.60x = 752.04 × 427.80
  4. Step 4: Simplify right side
    546.60x = 321,722.71
  5. Step 5: Solve for x
    x = 321,722.71/546.60
  6. Step 6: Final answer
    x = 588.59

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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.