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Finding the Fourth Proportional to 636.26, 946.77 and 634.10

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Solution

The fourth proportional to 636.26, 946.77 and 634.10 is: 943.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.26 : 946.77 = 634.10 : x
  2. Step 2: Convert to fraction form
    636.26/946.77 = 634.10/x
  3. Step 3: Cross multiply
    636.26x = 946.77 × 634.10
  4. Step 4: Simplify right side
    636.26x = 600,346.86
  5. Step 5: Solve for x
    x = 600,346.86/636.26
  6. Step 6: Final answer
    x = 943.56

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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.