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Finding the Fourth Proportional to 413,740.80, 620,611.20 and 272,023.20

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Solution

The fourth proportional to 413,740.80, 620,611.20 and 272,023.20 is: 408,034.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,740.80 : 620,611.20 = 272,023.20 : x
  2. Step 2: Convert to fraction form
    413,740.80/620,611.20 = 272,023.20/x
  3. Step 3: Cross multiply
    413,740.80x = 620,611.20 × 272,023.20
  4. Step 4: Simplify right side
    413,740.80x = 168,820,644,579.84
  5. Step 5: Solve for x
    x = 168,820,644,579.84/413,740.80
  6. Step 6: Final answer
    x = 408,034.80

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