Home / 1,978,937.70-2,967,110.55-780,137.70

Finding the Fourth Proportional to 1,978,937.70, 2,967,110.55 and 780,137.70

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Solution

The fourth proportional to 1,978,937.70, 2,967,110.55 and 780,137.70 is: 1,169,695.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,937.70 : 2,967,110.55 = 780,137.70 : x
  2. Step 2: Convert to fraction form
    1,978,937.70/2,967,110.55 = 780,137.70/x
  3. Step 3: Cross multiply
    1,978,937.70x = 2,967,110.55 × 780,137.70
  4. Step 4: Simplify right side
    1,978,937.70x = 2,314,754,800,122.74
  5. Step 5: Solve for x
    x = 2,314,754,800,122.74/1,978,937.70
  6. Step 6: Final answer
    x = 1,169,695.64

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