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Finding the Fourth Proportional to 455.92, 629.99 and 324.70

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Solution

The fourth proportional to 455.92, 629.99 and 324.70 is: 448.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    455.92 : 629.99 = 324.70 : x
  2. Step 2: Convert to fraction form
    455.92/629.99 = 324.70/x
  3. Step 3: Cross multiply
    455.92x = 629.99 × 324.70
  4. Step 4: Simplify right side
    455.92x = 204,554.60
  5. Step 5: Solve for x
    x = 204,554.60/455.92
  6. Step 6: Final answer
    x = 448.67

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