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Finding the Fourth Proportional to 636.44, 877.10 and 496.34

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Solution

The fourth proportional to 636.44, 877.10 and 496.34 is: 684.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.44 : 877.10 = 496.34 : x
  2. Step 2: Convert to fraction form
    636.44/877.10 = 496.34/x
  3. Step 3: Cross multiply
    636.44x = 877.10 × 496.34
  4. Step 4: Simplify right side
    636.44x = 435,337.93
  5. Step 5: Solve for x
    x = 435,337.93/636.44
  6. Step 6: Final answer
    x = 684.02

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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.