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Finding the Fourth Proportional to 408,434.59, 563,607.07 and 227,146.87

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Solution

The fourth proportional to 408,434.59, 563,607.07 and 227,146.87 is: 313,444.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,434.59 : 563,607.07 = 227,146.87 : x
  2. Step 2: Convert to fraction form
    408,434.59/563,607.07 = 227,146.87/x
  3. Step 3: Cross multiply
    408,434.59x = 563,607.07 × 227,146.87
  4. Step 4: Simplify right side
    408,434.59x = 128,021,581,860.37
  5. Step 5: Solve for x
    x = 128,021,581,860.37/408,434.59
  6. Step 6: Final answer
    x = 313,444.51

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