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Finding the Fourth Proportional to 632.07, 871.92 and 457.56

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Solution

The fourth proportional to 632.07, 871.92 and 457.56 is: 631.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.07 : 871.92 = 457.56 : x
  2. Step 2: Convert to fraction form
    632.07/871.92 = 457.56/x
  3. Step 3: Cross multiply
    632.07x = 871.92 × 457.56
  4. Step 4: Simplify right side
    632.07x = 398,955.72
  5. Step 5: Solve for x
    x = 398,955.72/632.07
  6. Step 6: Final answer
    x = 631.19

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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.