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Finding the Fourth Proportional to 354,637.60, 531,956.40 and 275,322.40

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Solution

The fourth proportional to 354,637.60, 531,956.40 and 275,322.40 is: 412,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,637.60 : 531,956.40 = 275,322.40 : x
  2. Step 2: Convert to fraction form
    354,637.60/531,956.40 = 275,322.40/x
  3. Step 3: Cross multiply
    354,637.60x = 531,956.40 × 275,322.40
  4. Step 4: Simplify right side
    354,637.60x = 146,459,512,743.36
  5. Step 5: Solve for x
    x = 146,459,512,743.36/354,637.60
  6. Step 6: Final answer
    x = 412,983.60

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