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Finding the Fourth Proportional to 456,509.70, 684,764.55 and 219,795.30

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Solution

The fourth proportional to 456,509.70, 684,764.55 and 219,795.30 is: 329,692.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,509.70 : 684,764.55 = 219,795.30 : x
  2. Step 2: Convert to fraction form
    456,509.70/684,764.55 = 219,795.30/x
  3. Step 3: Cross multiply
    456,509.70x = 684,764.55 × 219,795.30
  4. Step 4: Simplify right side
    456,509.70x = 150,508,029,696.62
  5. Step 5: Solve for x
    x = 150,508,029,696.62/456,509.70
  6. Step 6: Final answer
    x = 329,692.95

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