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Finding the Fourth Proportional to 944.82, 1,302.95 and 613.13

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Solution

The fourth proportional to 944.82, 1,302.95 and 613.13 is: 845.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.82 : 1,302.95 = 613.13 : x
  2. Step 2: Convert to fraction form
    944.82/1,302.95 = 613.13/x
  3. Step 3: Cross multiply
    944.82x = 1,302.95 × 613.13
  4. Step 4: Simplify right side
    944.82x = 798,872.75
  5. Step 5: Solve for x
    x = 798,872.75/944.82
  6. Step 6: Final answer
    x = 845.53

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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.