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Finding the Fourth Proportional to 692.73, 956.01 and 394.03

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Solution

The fourth proportional to 692.73, 956.01 and 394.03 is: 543.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.73 : 956.01 = 394.03 : x
  2. Step 2: Convert to fraction form
    692.73/956.01 = 394.03/x
  3. Step 3: Cross multiply
    692.73x = 956.01 × 394.03
  4. Step 4: Simplify right side
    692.73x = 376,694.23
  5. Step 5: Solve for x
    x = 376,694.23/692.73
  6. Step 6: Final answer
    x = 543.78

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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.