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Finding the Fourth Proportional to 402,917.69, 556,029.89 and 219,157.73

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Solution

The fourth proportional to 402,917.69, 556,029.89 and 219,157.73 is: 302,439.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,917.69 : 556,029.89 = 219,157.73 : x
  2. Step 2: Convert to fraction form
    402,917.69/556,029.89 = 219,157.73/x
  3. Step 3: Cross multiply
    402,917.69x = 556,029.89 × 219,157.73
  4. Step 4: Simplify right side
    402,917.69x = 121,858,244,628.61
  5. Step 5: Solve for x
    x = 121,858,244,628.61/402,917.69
  6. Step 6: Final answer
    x = 302,439.55

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