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Finding the Fourth Proportional to 383,680.72, 529,479.72 and 213,911.44

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Solution

The fourth proportional to 383,680.72, 529,479.72 and 213,911.44 is: 295,197.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,680.72 : 529,479.72 = 213,911.44 : x
  2. Step 2: Convert to fraction form
    383,680.72/529,479.72 = 213,911.44/x
  3. Step 3: Cross multiply
    383,680.72x = 529,479.72 × 213,911.44
  4. Step 4: Simplify right side
    383,680.72x = 113,261,769,356.00
  5. Step 5: Solve for x
    x = 113,261,769,356.00/383,680.72
  6. Step 6: Final answer
    x = 295,197.97

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