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Finding the Fourth Proportional to 501,190.78, 691,600.48 and 283,388.77

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Solution

The fourth proportional to 501,190.78, 691,600.48 and 283,388.77 is: 391,052.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,190.78 : 691,600.48 = 283,388.77 : x
  2. Step 2: Convert to fraction form
    501,190.78/691,600.48 = 283,388.77/x
  3. Step 3: Cross multiply
    501,190.78x = 691,600.48 × 283,388.77
  4. Step 4: Simplify right side
    501,190.78x = 195,991,809,358.61
  5. Step 5: Solve for x
    x = 195,991,809,358.61/501,190.78
  6. Step 6: Final answer
    x = 391,052.30

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