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Finding the Fourth Proportional to 326,994.90, 490,678.68 and 127,289.40

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Solution

The fourth proportional to 326,994.90, 490,678.68 and 127,289.40 is: 191,006.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,994.90 : 490,678.68 = 127,289.40 : x
  2. Step 2: Convert to fraction form
    326,994.90/490,678.68 = 127,289.40/x
  3. Step 3: Cross multiply
    326,994.90x = 490,678.68 × 127,289.40
  4. Step 4: Simplify right side
    326,994.90x = 62,458,194,769.99
  5. Step 5: Solve for x
    x = 62,458,194,769.99/326,994.90
  6. Step 6: Final answer
    x = 191,006.63

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