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Finding the Fourth Proportional to 773.38, 1,069.32 and 676.18

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Solution

The fourth proportional to 773.38, 1,069.32 and 676.18 is: 934.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    773.38 : 1,069.32 = 676.18 : x
  2. Step 2: Convert to fraction form
    773.38/1,069.32 = 676.18/x
  3. Step 3: Cross multiply
    773.38x = 1,069.32 × 676.18
  4. Step 4: Simplify right side
    773.38x = 723,052.80
  5. Step 5: Solve for x
    x = 723,052.80/773.38
  6. Step 6: Final answer
    x = 934.93

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1.5x scale

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.