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Finding the Fourth Proportional to 546.73, 754.65 and 518.83

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Solution

The fourth proportional to 546.73, 754.65 and 518.83 is: 716.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.73 : 754.65 = 518.83 : x
  2. Step 2: Convert to fraction form
    546.73/754.65 = 518.83/x
  3. Step 3: Cross multiply
    546.73x = 754.65 × 518.83
  4. Step 4: Simplify right side
    546.73x = 391,529.67
  5. Step 5: Solve for x
    x = 391,529.67/546.73
  6. Step 6: Final answer
    x = 716.13

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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.