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Finding the Fourth Proportional to 866,862.10, 1,300,293.15 and 305,896.60

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Solution

The fourth proportional to 866,862.10, 1,300,293.15 and 305,896.60 is: 458,844.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,862.10 : 1,300,293.15 = 305,896.60 : x
  2. Step 2: Convert to fraction form
    866,862.10/1,300,293.15 = 305,896.60/x
  3. Step 3: Cross multiply
    866,862.10x = 1,300,293.15 × 305,896.60
  4. Step 4: Simplify right side
    866,862.10x = 397,755,253,588.29
  5. Step 5: Solve for x
    x = 397,755,253,588.29/866,862.10
  6. Step 6: Final answer
    x = 458,844.90

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