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Finding the Fourth Proportional to 944.76, 1,417.17 and 902.64

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Solution

The fourth proportional to 944.76, 1,417.17 and 902.64 is: 1,353.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.76 : 1,417.17 = 902.64 : x
  2. Step 2: Convert to fraction form
    944.76/1,417.17 = 902.64/x
  3. Step 3: Cross multiply
    944.76x = 1,417.17 × 902.64
  4. Step 4: Simplify right side
    944.76x = 1,279,194.33
  5. Step 5: Solve for x
    x = 1,279,194.33/944.76
  6. Step 6: Final answer
    x = 1,353.99

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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.