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Finding the Fourth Proportional to 694.56, 959.04 and 692.76

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Solution

The fourth proportional to 694.56, 959.04 and 692.76 is: 956.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    694.56 : 959.04 = 692.76 : x
  2. Step 2: Convert to fraction form
    694.56/959.04 = 692.76/x
  3. Step 3: Cross multiply
    694.56x = 959.04 × 692.76
  4. Step 4: Simplify right side
    694.56x = 664,384.55
  5. Step 5: Solve for x
    x = 664,384.55/694.56
  6. Step 6: Final answer
    x = 956.55

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Double scale
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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.