Home / 1,231,679.80-1,847,519.70-811,430.20

Finding the Fourth Proportional to 1,231,679.80, 1,847,519.70 and 811,430.20

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Solution

The fourth proportional to 1,231,679.80, 1,847,519.70 and 811,430.20 is: 1,217,145.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,679.80 : 1,847,519.70 = 811,430.20 : x
  2. Step 2: Convert to fraction form
    1,231,679.80/1,847,519.70 = 811,430.20/x
  3. Step 3: Cross multiply
    1,231,679.80x = 1,847,519.70 × 811,430.20
  4. Step 4: Simplify right side
    1,231,679.80x = 1,499,133,279,674.94
  5. Step 5: Solve for x
    x = 1,499,133,279,674.94/1,231,679.80
  6. Step 6: Final answer
    x = 1,217,145.30

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