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Finding the Fourth Proportional to 407,140.60, 561,857.40 and 225,864.40

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Solution

The fourth proportional to 407,140.60, 561,857.40 and 225,864.40 is: 311,694.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,140.60 : 561,857.40 = 225,864.40 : x
  2. Step 2: Convert to fraction form
    407,140.60/561,857.40 = 225,864.40/x
  3. Step 3: Cross multiply
    407,140.60x = 561,857.40 × 225,864.40
  4. Step 4: Simplify right side
    407,140.60x = 126,903,584,536.56
  5. Step 5: Solve for x
    x = 126,903,584,536.56/407,140.60
  6. Step 6: Final answer
    x = 311,694.74

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