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Finding the Fourth Proportional to 950.67, 1,427.22 and 402.39

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Solution

The fourth proportional to 950.67, 1,427.22 and 402.39 is: 604.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    950.67 : 1,427.22 = 402.39 : x
  2. Step 2: Convert to fraction form
    950.67/1,427.22 = 402.39/x
  3. Step 3: Cross multiply
    950.67x = 1,427.22 × 402.39
  4. Step 4: Simplify right side
    950.67x = 574,299.06
  5. Step 5: Solve for x
    x = 574,299.06/950.67
  6. Step 6: Final answer
    x = 604.10

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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.