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Finding the Fourth Proportional to 455,906.80, 683,860.20 and 123,482.80

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Solution

The fourth proportional to 455,906.80, 683,860.20 and 123,482.80 is: 185,224.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,906.80 : 683,860.20 = 123,482.80 : x
  2. Step 2: Convert to fraction form
    455,906.80/683,860.20 = 123,482.80/x
  3. Step 3: Cross multiply
    455,906.80x = 683,860.20 × 123,482.80
  4. Step 4: Simplify right side
    455,906.80x = 84,444,972,304.56
  5. Step 5: Solve for x
    x = 84,444,972,304.56/455,906.80
  6. Step 6: Final answer
    x = 185,224.20

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