Home / 1,940,947.20-2,911,420.80-678,643.20

Finding the Fourth Proportional to 1,940,947.20, 2,911,420.80 and 678,643.20

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Solution

The fourth proportional to 1,940,947.20, 2,911,420.80 and 678,643.20 is: 1,017,964.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940,947.20 : 2,911,420.80 = 678,643.20 : x
  2. Step 2: Convert to fraction form
    1,940,947.20/2,911,420.80 = 678,643.20/x
  3. Step 3: Cross multiply
    1,940,947.20x = 2,911,420.80 × 678,643.20
  4. Step 4: Simplify right side
    1,940,947.20x = 1,975,815,928,258.56
  5. Step 5: Solve for x
    x = 1,975,815,928,258.56/1,940,947.20
  6. Step 6: Final answer
    x = 1,017,964.80

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