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Finding the Fourth Proportional to 636.09, 952.34 and 404.41

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Solution

The fourth proportional to 636.09, 952.34 and 404.41 is: 605.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.09 : 952.34 = 404.41 : x
  2. Step 2: Convert to fraction form
    636.09/952.34 = 404.41/x
  3. Step 3: Cross multiply
    636.09x = 952.34 × 404.41
  4. Step 4: Simplify right side
    636.09x = 385,135.82
  5. Step 5: Solve for x
    x = 385,135.82/636.09
  6. Step 6: Final answer
    x = 605.47

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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.