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Finding the Fourth Proportional to 1,978,350.60, 2,965,975.64 and 781,169.02

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Solution

The fourth proportional to 1,978,350.60, 2,965,975.64 and 781,169.02 is: 1,171,141.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,350.60 : 2,965,975.64 = 781,169.02 : x
  2. Step 2: Convert to fraction form
    1,978,350.60/2,965,975.64 = 781,169.02/x
  3. Step 3: Cross multiply
    1,978,350.60x = 2,965,975.64 × 781,169.02
  4. Step 4: Simplify right side
    1,978,350.60x = 2,316,928,284,042.67
  5. Step 5: Solve for x
    x = 2,316,928,284,042.67/1,978,350.60
  6. Step 6: Final answer
    x = 1,171,141.40

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