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Finding the Fourth Proportional to 944.52, 1,302.96 and 571.38

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Solution

The fourth proportional to 944.52, 1,302.96 and 571.38 is: 788.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.52 : 1,302.96 = 571.38 : x
  2. Step 2: Convert to fraction form
    944.52/1,302.96 = 571.38/x
  3. Step 3: Cross multiply
    944.52x = 1,302.96 × 571.38
  4. Step 4: Simplify right side
    944.52x = 744,485.28
  5. Step 5: Solve for x
    x = 744,485.28/944.52
  6. Step 6: Final answer
    x = 788.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.