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Finding the Fourth Proportional to 417,695.40, 576,420.20 and 226,708.80

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Solution

The fourth proportional to 417,695.40, 576,420.20 and 226,708.80 is: 312,858.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,695.40 : 576,420.20 = 226,708.80 : x
  2. Step 2: Convert to fraction form
    417,695.40/576,420.20 = 226,708.80/x
  3. Step 3: Cross multiply
    417,695.40x = 576,420.20 × 226,708.80
  4. Step 4: Simplify right side
    417,695.40x = 130,679,531,837.76
  5. Step 5: Solve for x
    x = 130,679,531,837.76/417,695.40
  6. Step 6: Final answer
    x = 312,858.44

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