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Finding the Fourth Proportional to 636.70, 953.81 and 567.90

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Solution

The fourth proportional to 636.70, 953.81 and 567.90 is: 850.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.70 : 953.81 = 567.90 : x
  2. Step 2: Convert to fraction form
    636.70/953.81 = 567.90/x
  3. Step 3: Cross multiply
    636.70x = 953.81 × 567.90
  4. Step 4: Simplify right side
    636.70x = 541,668.70
  5. Step 5: Solve for x
    x = 541,668.70/636.70
  6. Step 6: Final answer
    x = 850.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.