Home / 809,337.80-1,214,006.70-388,512.20

Finding the Fourth Proportional to 809,337.80, 1,214,006.70 and 388,512.20

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Solution

The fourth proportional to 809,337.80, 1,214,006.70 and 388,512.20 is: 582,768.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,337.80 : 1,214,006.70 = 388,512.20 : x
  2. Step 2: Convert to fraction form
    809,337.80/1,214,006.70 = 388,512.20/x
  3. Step 3: Cross multiply
    809,337.80x = 1,214,006.70 × 388,512.20
  4. Step 4: Simplify right side
    809,337.80x = 471,656,413,831.74
  5. Step 5: Solve for x
    x = 471,656,413,831.74/809,337.80
  6. Step 6: Final answer
    x = 582,768.30

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