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Finding the Fourth Proportional to 347,057.20, 520,099.80 and 276,101.20

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Solution

The fourth proportional to 347,057.20, 520,099.80 and 276,101.20 is: 413,765.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,057.20 : 520,099.80 = 276,101.20 : x
  2. Step 2: Convert to fraction form
    347,057.20/520,099.80 = 276,101.20/x
  3. Step 3: Cross multiply
    347,057.20x = 520,099.80 × 276,101.20
  4. Step 4: Simplify right side
    347,057.20x = 143,600,178,899.76
  5. Step 5: Solve for x
    x = 143,600,178,899.76/347,057.20
  6. Step 6: Final answer
    x = 413,765.16

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