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Finding the Fourth Proportional to 481, 664.98 and 460.60

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Solution

The fourth proportional to 481, 664.98 and 460.60 is: 636.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    481 : 664.98 = 460.60 : x
  2. Step 2: Convert to fraction form
    481/664.98 = 460.60/x
  3. Step 3: Cross multiply
    481x = 664.98 × 460.60
  4. Step 4: Simplify right side
    481x = 306,289.79
  5. Step 5: Solve for x
    x = 306,289.79/481
  6. Step 6: Final answer
    x = 636.78

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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.