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Finding the Fourth Proportional to 491,559.36, 678,344.40 and 276,698.76

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Solution

The fourth proportional to 491,559.36, 678,344.40 and 276,698.76 is: 381,840.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,559.36 : 678,344.40 = 276,698.76 : x
  2. Step 2: Convert to fraction form
    491,559.36/678,344.40 = 276,698.76/x
  3. Step 3: Cross multiply
    491,559.36x = 678,344.40 × 276,698.76
  4. Step 4: Simplify right side
    491,559.36x = 187,697,054,332.94
  5. Step 5: Solve for x
    x = 187,697,054,332.94/491,559.36
  6. Step 6: Final answer
    x = 381,840.06

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