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Finding the Fourth Proportional to 313,497.20, 470,245.80 and 311,747.60

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Solution

The fourth proportional to 313,497.20, 470,245.80 and 311,747.60 is: 467,621.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,497.20 : 470,245.80 = 311,747.60 : x
  2. Step 2: Convert to fraction form
    313,497.20/470,245.80 = 311,747.60/x
  3. Step 3: Cross multiply
    313,497.20x = 470,245.80 × 311,747.60
  4. Step 4: Simplify right side
    313,497.20x = 146,597,999,560.08
  5. Step 5: Solve for x
    x = 146,597,999,560.08/313,497.20
  6. Step 6: Final answer
    x = 467,621.40

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