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Finding the Fourth Proportional to 445,078.02, 664,379.43 and 412,185.54

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Solution

The fourth proportional to 445,078.02, 664,379.43 and 412,185.54 is: 615,279.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,078.02 : 664,379.43 = 412,185.54 : x
  2. Step 2: Convert to fraction form
    445,078.02/664,379.43 = 412,185.54/x
  3. Step 3: Cross multiply
    445,078.02x = 664,379.43 × 412,185.54
  4. Step 4: Simplify right side
    445,078.02x = 273,847,594,119.44
  5. Step 5: Solve for x
    x = 273,847,594,119.44/445,078.02
  6. Step 6: Final answer
    x = 615,279.98

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