Home / 685,712.25-1,028,369.77-205,920.69

Finding the Fourth Proportional to 685,712.25, 1,028,369.77 and 205,920.69

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Solution

The fourth proportional to 685,712.25, 1,028,369.77 and 205,920.69 is: 308,821.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,712.25 : 1,028,369.77 = 205,920.69 : x
  2. Step 2: Convert to fraction form
    685,712.25/1,028,369.77 = 205,920.69/x
  3. Step 3: Cross multiply
    685,712.25x = 1,028,369.77 × 205,920.69
  4. Step 4: Simplify right side
    685,712.25x = 211,762,612,613.54
  5. Step 5: Solve for x
    x = 211,762,612,613.54/685,712.25
  6. Step 6: Final answer
    x = 308,821.39

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