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Finding the Fourth Proportional to 452.26, 676.03 and 391.26

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Solution

The fourth proportional to 452.26, 676.03 and 391.26 is: 584.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.26 : 676.03 = 391.26 : x
  2. Step 2: Convert to fraction form
    452.26/676.03 = 391.26/x
  3. Step 3: Cross multiply
    452.26x = 676.03 × 391.26
  4. Step 4: Simplify right side
    452.26x = 264,503.50
  5. Step 5: Solve for x
    x = 264,503.50/452.26
  6. Step 6: Final answer
    x = 584.85

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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.