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Finding the Fourth Proportional to 692.76, 956.00 and 378.02

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Solution

The fourth proportional to 692.76, 956.00 and 378.02 is: 521.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.76 : 956.00 = 378.02 : x
  2. Step 2: Convert to fraction form
    692.76/956.00 = 378.02/x
  3. Step 3: Cross multiply
    692.76x = 956.00 × 378.02
  4. Step 4: Simplify right side
    692.76x = 361,384.89
  5. Step 5: Solve for x
    x = 361,384.89/692.76
  6. Step 6: Final answer
    x = 521.66

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