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Finding the Fourth Proportional to 541,296.40, 811,944.60 and 520,560.40

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Solution

The fourth proportional to 541,296.40, 811,944.60 and 520,560.40 is: 780,840.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,296.40 : 811,944.60 = 520,560.40 : x
  2. Step 2: Convert to fraction form
    541,296.40/811,944.60 = 520,560.40/x
  3. Step 3: Cross multiply
    541,296.40x = 811,944.60 × 520,560.40
  4. Step 4: Simplify right side
    541,296.40x = 422,666,205,753.84
  5. Step 5: Solve for x
    x = 422,666,205,753.84/541,296.40
  6. Step 6: Final answer
    x = 780,840.60

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