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Finding the Fourth Proportional to 539,561.20, 809,341.80 and 259,010.80

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Solution

The fourth proportional to 539,561.20, 809,341.80 and 259,010.80 is: 388,516.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,561.20 : 809,341.80 = 259,010.80 : x
  2. Step 2: Convert to fraction form
    539,561.20/809,341.80 = 259,010.80/x
  3. Step 3: Cross multiply
    539,561.20x = 809,341.80 × 259,010.80
  4. Step 4: Simplify right side
    539,561.20x = 209,628,267,091.44
  5. Step 5: Solve for x
    x = 209,628,267,091.44/539,561.20
  6. Step 6: Final answer
    x = 388,516.20

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