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Finding the Fourth Proportional to 481.56, 717.90 and 453.96

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Solution

The fourth proportional to 481.56, 717.90 and 453.96 is: 676.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.56 : 717.90 = 453.96 : x
  2. Step 2: Convert to fraction form
    481.56/717.90 = 453.96/x
  3. Step 3: Cross multiply
    481.56x = 717.90 × 453.96
  4. Step 4: Simplify right side
    481.56x = 325,897.88
  5. Step 5: Solve for x
    x = 325,897.88/481.56
  6. Step 6: Final answer
    x = 676.75

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.