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Finding the Fourth Proportional to 560,478.90, 773,479.55 and 305,844.06

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Solution

The fourth proportional to 560,478.90, 773,479.55 and 305,844.06 is: 422,074.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,478.90 : 773,479.55 = 305,844.06 : x
  2. Step 2: Convert to fraction form
    560,478.90/773,479.55 = 305,844.06/x
  3. Step 3: Cross multiply
    560,478.90x = 773,479.55 × 305,844.06
  4. Step 4: Simplify right side
    560,478.90x = 236,564,125,898.97
  5. Step 5: Solve for x
    x = 236,564,125,898.97/560,478.90
  6. Step 6: Final answer
    x = 422,074.99

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