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Finding the Fourth Proportional to 492,069.58, 678,973.78 and 274,230.68

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Solution

The fourth proportional to 492,069.58, 678,973.78 and 274,230.68 is: 378,392.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,069.58 : 678,973.78 = 274,230.68 : x
  2. Step 2: Convert to fraction form
    492,069.58/678,973.78 = 274,230.68/x
  3. Step 3: Cross multiply
    492,069.58x = 678,973.78 × 274,230.68
  4. Step 4: Simplify right side
    492,069.58x = 186,195,441,391.57
  5. Step 5: Solve for x
    x = 186,195,441,391.57/492,069.58
  6. Step 6: Final answer
    x = 378,392.51

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