Home / 1,978,812.10-2,967,331.20-780,117.40

Finding the Fourth Proportional to 1,978,812.10, 2,967,331.20 and 780,117.40

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Solution

The fourth proportional to 1,978,812.10, 2,967,331.20 and 780,117.40 is: 1,169,826.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,812.10 : 2,967,331.20 = 780,117.40 : x
  2. Step 2: Convert to fraction form
    1,978,812.10/2,967,331.20 = 780,117.40/x
  3. Step 3: Cross multiply
    1,978,812.10x = 2,967,331.20 × 780,117.40
  4. Step 4: Simplify right side
    1,978,812.10x = 2,314,866,700,682.88
  5. Step 5: Solve for x
    x = 2,314,866,700,682.88/1,978,812.10
  6. Step 6: Final answer
    x = 1,169,826.43

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