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Finding the Fourth Proportional to 456,808.80, 685,213.20 and 124,384.80

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Solution

The fourth proportional to 456,808.80, 685,213.20 and 124,384.80 is: 186,577.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,808.80 : 685,213.20 = 124,384.80 : x
  2. Step 2: Convert to fraction form
    456,808.80/685,213.20 = 124,384.80/x
  3. Step 3: Cross multiply
    456,808.80x = 685,213.20 × 124,384.80
  4. Step 4: Simplify right side
    456,808.80x = 85,230,106,839.36
  5. Step 5: Solve for x
    x = 85,230,106,839.36/456,808.80
  6. Step 6: Final answer
    x = 186,577.20

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