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Finding the Fourth Proportional to 481.93, 717.69 and 450.79

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Solution

The fourth proportional to 481.93, 717.69 and 450.79 is: 671.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.93 : 717.69 = 450.79 : x
  2. Step 2: Convert to fraction form
    481.93/717.69 = 450.79/x
  3. Step 3: Cross multiply
    481.93x = 717.69 × 450.79
  4. Step 4: Simplify right side
    481.93x = 323,527.48
  5. Step 5: Solve for x
    x = 323,527.48/481.93
  6. Step 6: Final answer
    x = 671.32

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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.