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Finding the Fourth Proportional to 635.64, 948.27 and 605.40

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Solution

The fourth proportional to 635.64, 948.27 and 605.40 is: 903.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.64 : 948.27 = 605.40 : x
  2. Step 2: Convert to fraction form
    635.64/948.27 = 605.40/x
  3. Step 3: Cross multiply
    635.64x = 948.27 × 605.40
  4. Step 4: Simplify right side
    635.64x = 574,082.66
  5. Step 5: Solve for x
    x = 574,082.66/635.64
  6. Step 6: Final answer
    x = 903.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.