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Finding the Fourth Proportional to 490,434.20, 735,104.55 and 190,815.20

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Solution

The fourth proportional to 490,434.20, 735,104.55 and 190,815.20 is: 286,010.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,434.20 : 735,104.55 = 190,815.20 : x
  2. Step 2: Convert to fraction form
    490,434.20/735,104.55 = 190,815.20/x
  3. Step 3: Cross multiply
    490,434.20x = 735,104.55 × 190,815.20
  4. Step 4: Simplify right side
    490,434.20x = 140,269,121,729.16
  5. Step 5: Solve for x
    x = 140,269,121,729.16/490,434.20
  6. Step 6: Final answer
    x = 286,010.07

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