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Finding the Fourth Proportional to 680,238.80, 1,020,375 and 325,290.32

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Solution

The fourth proportional to 680,238.80, 1,020,375 and 325,290.32 is: 487,943.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,238.80 : 1,020,375 = 325,290.32 : x
  2. Step 2: Convert to fraction form
    680,238.80/1,020,375 = 325,290.32/x
  3. Step 3: Cross multiply
    680,238.80x = 1,020,375 × 325,290.32
  4. Step 4: Simplify right side
    680,238.80x = 331,918,110,270
  5. Step 5: Solve for x
    x = 331,918,110,270/680,238.80
  6. Step 6: Final answer
    x = 487,943.51

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