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Finding the Fourth Proportional to 951.26, 1,427.04 and 403.40

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Solution

The fourth proportional to 951.26, 1,427.04 and 403.40 is: 605.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.26 : 1,427.04 = 403.40 : x
  2. Step 2: Convert to fraction form
    951.26/1,427.04 = 403.40/x
  3. Step 3: Cross multiply
    951.26x = 1,427.04 × 403.40
  4. Step 4: Simplify right side
    951.26x = 575,667.94
  5. Step 5: Solve for x
    x = 575,667.94/951.26
  6. Step 6: Final answer
    x = 605.16

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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.