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Finding the Fourth Proportional to 410,726.70, 616,148.37 and 126,440.91

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Solution

The fourth proportional to 410,726.70, 616,148.37 and 126,440.91 is: 189,679.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,726.70 : 616,148.37 = 126,440.91 : x
  2. Step 2: Convert to fraction form
    410,726.70/616,148.37 = 126,440.91/x
  3. Step 3: Cross multiply
    410,726.70x = 616,148.37 × 126,440.91
  4. Step 4: Simplify right side
    410,726.70x = 77,906,360,597.82
  5. Step 5: Solve for x
    x = 77,906,360,597.82/410,726.70
  6. Step 6: Final answer
    x = 189,679.32

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