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Finding the Fourth Proportional to 1,978,348.85, 2,965,973.02 and 781,167.27

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Solution

The fourth proportional to 1,978,348.85, 2,965,973.02 and 781,167.27 is: 1,171,138.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,348.85 : 2,965,973.02 = 781,167.27 : x
  2. Step 2: Convert to fraction form
    1,978,348.85/2,965,973.02 = 781,167.27/x
  3. Step 3: Cross multiply
    1,978,348.85x = 2,965,973.02 × 781,167.27
  4. Step 4: Simplify right side
    1,978,348.85x = 2,316,921,056,096.54
  5. Step 5: Solve for x
    x = 2,316,921,056,096.54/1,978,348.85
  6. Step 6: Final answer
    x = 1,171,138.78

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