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Finding the Fourth Proportional to 546.06, 818.96 and 455.34

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Solution

The fourth proportional to 546.06, 818.96 and 455.34 is: 682.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.06 : 818.96 = 455.34 : x
  2. Step 2: Convert to fraction form
    546.06/818.96 = 455.34/x
  3. Step 3: Cross multiply
    546.06x = 818.96 × 455.34
  4. Step 4: Simplify right side
    546.06x = 372,905.25
  5. Step 5: Solve for x
    x = 372,905.25/546.06
  6. Step 6: Final answer
    x = 682.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.