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Finding the Fourth Proportional to 692.97, 956.15 and 440.99

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Solution

The fourth proportional to 692.97, 956.15 and 440.99 is: 608.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.97 : 956.15 = 440.99 : x
  2. Step 2: Convert to fraction form
    692.97/956.15 = 440.99/x
  3. Step 3: Cross multiply
    692.97x = 956.15 × 440.99
  4. Step 4: Simplify right side
    692.97x = 421,656.08
  5. Step 5: Solve for x
    x = 421,656.08/692.97
  6. Step 6: Final answer
    x = 608.48

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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.