Home / 813,180.97-1,219,831.37-214,137.98

Finding the Fourth Proportional to 813,180.97, 1,219,831.37 and 214,137.98

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Solution

The fourth proportional to 813,180.97, 1,219,831.37 and 214,137.98 is: 321,222.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,180.97 : 1,219,831.37 = 214,137.98 : x
  2. Step 2: Convert to fraction form
    813,180.97/1,219,831.37 = 214,137.98/x
  3. Step 3: Cross multiply
    813,180.97x = 1,219,831.37 × 214,137.98
  4. Step 4: Simplify right side
    813,180.97x = 261,212,224,441.74
  5. Step 5: Solve for x
    x = 261,212,224,441.74/813,180.97
  6. Step 6: Final answer
    x = 321,222.75

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