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Finding the Fourth Proportional to 952.08, 1,427.28 and 626.76

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Solution

The fourth proportional to 952.08, 1,427.28 and 626.76 is: 939.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.08 : 1,427.28 = 626.76 : x
  2. Step 2: Convert to fraction form
    952.08/1,427.28 = 626.76/x
  3. Step 3: Cross multiply
    952.08x = 1,427.28 × 626.76
  4. Step 4: Simplify right side
    952.08x = 894,562.01
  5. Step 5: Solve for x
    x = 894,562.01/952.08
  6. Step 6: Final answer
    x = 939.59

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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.