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Finding the Fourth Proportional to 512,201.40, 706,877.10 and 282,802.92

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Solution

The fourth proportional to 512,201.40, 706,877.10 and 282,802.92 is: 390,289.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,201.40 : 706,877.10 = 282,802.92 : x
  2. Step 2: Convert to fraction form
    512,201.40/706,877.10 = 282,802.92/x
  3. Step 3: Cross multiply
    512,201.40x = 706,877.10 × 282,802.92
  4. Step 4: Simplify right side
    512,201.40x = 199,906,907,961.13
  5. Step 5: Solve for x
    x = 199,906,907,961.13/512,201.40
  6. Step 6: Final answer
    x = 390,289.66

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