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Finding the Fourth Proportional to 1,978,849.44, 2,968,439.92 and 631,205.28

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Solution

The fourth proportional to 1,978,849.44, 2,968,439.92 and 631,205.28 is: 946,860.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,849.44 : 2,968,439.92 = 631,205.28 : x
  2. Step 2: Convert to fraction form
    1,978,849.44/2,968,439.92 = 631,205.28/x
  3. Step 3: Cross multiply
    1,978,849.44x = 2,968,439.92 × 631,205.28
  4. Step 4: Simplify right side
    1,978,849.44x = 1,873,694,950,866.78
  5. Step 5: Solve for x
    x = 1,873,694,950,866.78/1,978,849.44
  6. Step 6: Final answer
    x = 946,860.79

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