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Finding the Fourth Proportional to 700.25, 966.33 and 405.61

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Solution

The fourth proportional to 700.25, 966.33 and 405.61 is: 559.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.25 : 966.33 = 405.61 : x
  2. Step 2: Convert to fraction form
    700.25/966.33 = 405.61/x
  3. Step 3: Cross multiply
    700.25x = 966.33 × 405.61
  4. Step 4: Simplify right side
    700.25x = 391,950.70
  5. Step 5: Solve for x
    x = 391,950.70/700.25
  6. Step 6: Final answer
    x = 559.73

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