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Finding the Fourth Proportional to 692.57, 955.73 and 382.07

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Solution

The fourth proportional to 692.57, 955.73 and 382.07 is: 527.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.57 : 955.73 = 382.07 : x
  2. Step 2: Convert to fraction form
    692.57/955.73 = 382.07/x
  3. Step 3: Cross multiply
    692.57x = 955.73 × 382.07
  4. Step 4: Simplify right side
    692.57x = 365,155.76
  5. Step 5: Solve for x
    x = 365,155.76/692.57
  6. Step 6: Final answer
    x = 527.25

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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.