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Finding the Fourth Proportional to 493,128.18, 680,512.05 and 266,768.82

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Solution

The fourth proportional to 493,128.18, 680,512.05 and 266,768.82 is: 368,138.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,128.18 : 680,512.05 = 266,768.82 : x
  2. Step 2: Convert to fraction form
    493,128.18/680,512.05 = 266,768.82/x
  3. Step 3: Cross multiply
    493,128.18x = 680,512.05 × 266,768.82
  4. Step 4: Simplify right side
    493,128.18x = 181,539,396,574.28
  5. Step 5: Solve for x
    x = 181,539,396,574.28/493,128.18
  6. Step 6: Final answer
    x = 368,138.35

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