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Finding the Fourth Proportional to 486,698.70, 671,640.26 and 268,906.69

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Solution

The fourth proportional to 486,698.70, 671,640.26 and 268,906.69 is: 371,089.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,698.70 : 671,640.26 = 268,906.69 : x
  2. Step 2: Convert to fraction form
    486,698.70/671,640.26 = 268,906.69/x
  3. Step 3: Cross multiply
    486,698.70x = 671,640.26 × 268,906.69
  4. Step 4: Simplify right side
    486,698.70x = 180,608,556,163.71
  5. Step 5: Solve for x
    x = 180,608,556,163.71/486,698.70
  6. Step 6: Final answer
    x = 371,089.05

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