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Finding the Fourth Proportional to 426,373.54, 639,448.95 and 126,773.46

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Solution

The fourth proportional to 426,373.54, 639,448.95 and 126,773.46 is: 190,127.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,373.54 : 639,448.95 = 126,773.46 : x
  2. Step 2: Convert to fraction form
    426,373.54/639,448.95 = 126,773.46/x
  3. Step 3: Cross multiply
    426,373.54x = 639,448.95 × 126,773.46
  4. Step 4: Simplify right side
    426,373.54x = 81,065,155,884.87
  5. Step 5: Solve for x
    x = 81,065,155,884.87/426,373.54
  6. Step 6: Final answer
    x = 190,127.08

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