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Finding the Fourth Proportional to 512,207.72, 706,886.70 and 285,887.24

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Solution

The fourth proportional to 512,207.72, 706,886.70 and 285,887.24 is: 394,546.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,207.72 : 706,886.70 = 285,887.24 : x
  2. Step 2: Convert to fraction form
    512,207.72/706,886.70 = 285,887.24/x
  3. Step 3: Cross multiply
    512,207.72x = 706,886.70 × 285,887.24
  4. Step 4: Simplify right side
    512,207.72x = 202,089,887,655.71
  5. Step 5: Solve for x
    x = 202,089,887,655.71/512,207.72
  6. Step 6: Final answer
    x = 394,546.74

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