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Finding the Fourth Proportional to 994.83, 1,372.94 and 575.27

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Solution

The fourth proportional to 994.83, 1,372.94 and 575.27 is: 793.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    994.83 : 1,372.94 = 575.27 : x
  2. Step 2: Convert to fraction form
    994.83/1,372.94 = 575.27/x
  3. Step 3: Cross multiply
    994.83x = 1,372.94 × 575.27
  4. Step 4: Simplify right side
    994.83x = 789,801.45
  5. Step 5: Solve for x
    x = 789,801.45/994.83
  6. Step 6: Final answer
    x = 793.91

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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.