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Finding the Fourth Proportional to 415,074.30, 622,611.45 and 247,112.70

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Solution

The fourth proportional to 415,074.30, 622,611.45 and 247,112.70 is: 370,669.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,074.30 : 622,611.45 = 247,112.70 : x
  2. Step 2: Convert to fraction form
    415,074.30/622,611.45 = 247,112.70/x
  3. Step 3: Cross multiply
    415,074.30x = 622,611.45 × 247,112.70
  4. Step 4: Simplify right side
    415,074.30x = 153,855,196,460.42
  5. Step 5: Solve for x
    x = 153,855,196,460.42/415,074.30
  6. Step 6: Final answer
    x = 370,669.05

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