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Finding the Fourth Proportional to 692.70, 956.13 and 444.69

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Solution

The fourth proportional to 692.70, 956.13 and 444.69 is: 613.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.70 : 956.13 = 444.69 : x
  2. Step 2: Convert to fraction form
    692.70/956.13 = 444.69/x
  3. Step 3: Cross multiply
    692.70x = 956.13 × 444.69
  4. Step 4: Simplify right side
    692.70x = 425,181.45
  5. Step 5: Solve for x
    x = 425,181.45/692.70
  6. Step 6: Final answer
    x = 613.80

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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.