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Finding the Fourth Proportional to 632.66, 876.46 and 617.54

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Solution

The fourth proportional to 632.66, 876.46 and 617.54 is: 855.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.66 : 876.46 = 617.54 : x
  2. Step 2: Convert to fraction form
    632.66/876.46 = 617.54/x
  3. Step 3: Cross multiply
    632.66x = 876.46 × 617.54
  4. Step 4: Simplify right side
    632.66x = 541,249.11
  5. Step 5: Solve for x
    x = 541,249.11/632.66
  6. Step 6: Final answer
    x = 855.51

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.