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Finding the Fourth Proportional to 485.59, 732.05 and 454.27

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Solution

The fourth proportional to 485.59, 732.05 and 454.27 is: 684.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    485.59 : 732.05 = 454.27 : x
  2. Step 2: Convert to fraction form
    485.59/732.05 = 454.27/x
  3. Step 3: Cross multiply
    485.59x = 732.05 × 454.27
  4. Step 4: Simplify right side
    485.59x = 332,548.35
  5. Step 5: Solve for x
    x = 332,548.35/485.59
  6. Step 6: Final answer
    x = 684.83

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.