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Finding the Fourth Proportional to 773.30, 1,158.91 and 444.39

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Solution

The fourth proportional to 773.30, 1,158.91 and 444.39 is: 665.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    773.30 : 1,158.91 = 444.39 : x
  2. Step 2: Convert to fraction form
    773.30/1,158.91 = 444.39/x
  3. Step 3: Cross multiply
    773.30x = 1,158.91 × 444.39
  4. Step 4: Simplify right side
    773.30x = 515,002.56
  5. Step 5: Solve for x
    x = 515,002.56/773.30
  6. Step 6: Final answer
    x = 665.98

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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.