Home / 819,247.20-1,229,043.60-345,688.80

Finding the Fourth Proportional to 819,247.20, 1,229,043.60 and 345,688.80

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Solution

The fourth proportional to 819,247.20, 1,229,043.60 and 345,688.80 is: 518,606.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,247.20 : 1,229,043.60 = 345,688.80 : x
  2. Step 2: Convert to fraction form
    819,247.20/1,229,043.60 = 345,688.80/x
  3. Step 3: Cross multiply
    819,247.20x = 1,229,043.60 × 345,688.80
  4. Step 4: Simplify right side
    819,247.20x = 424,866,607,231.68
  5. Step 5: Solve for x
    x = 424,866,607,231.68/819,247.20
  6. Step 6: Final answer
    x = 518,606.11

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