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Finding the Fourth Proportional to 635.46, 952.11 and 403.80

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Solution

The fourth proportional to 635.46, 952.11 and 403.80 is: 605.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.46 : 952.11 = 403.80 : x
  2. Step 2: Convert to fraction form
    635.46/952.11 = 403.80/x
  3. Step 3: Cross multiply
    635.46x = 952.11 × 403.80
  4. Step 4: Simplify right side
    635.46x = 384,462.02
  5. Step 5: Solve for x
    x = 384,462.02/635.46
  6. Step 6: Final answer
    x = 605.01

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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.