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Finding the Fourth Proportional to 635.99, 952.39 and 404.19

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Solution

The fourth proportional to 635.99, 952.39 and 404.19 is: 605.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.99 : 952.39 = 404.19 : x
  2. Step 2: Convert to fraction form
    635.99/952.39 = 404.19/x
  3. Step 3: Cross multiply
    635.99x = 952.39 × 404.19
  4. Step 4: Simplify right side
    635.99x = 384,947.02
  5. Step 5: Solve for x
    x = 384,947.02/635.99
  6. Step 6: Final answer
    x = 605.28

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Double scale
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Similar ratio
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1.5x scale

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.