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Finding the Fourth Proportional to 944.30, 1,302.23 and 612.56

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Solution

The fourth proportional to 944.30, 1,302.23 and 612.56 is: 844.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.30 : 1,302.23 = 612.56 : x
  2. Step 2: Convert to fraction form
    944.30/1,302.23 = 612.56/x
  3. Step 3: Cross multiply
    944.30x = 1,302.23 × 612.56
  4. Step 4: Simplify right side
    944.30x = 797,684.43
  5. Step 5: Solve for x
    x = 797,684.43/944.30
  6. Step 6: Final answer
    x = 844.74

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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.