Home / 809,615.20-1,214,422.80-336,056.80

Finding the Fourth Proportional to 809,615.20, 1,214,422.80 and 336,056.80

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Solution

The fourth proportional to 809,615.20, 1,214,422.80 and 336,056.80 is: 504,085.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,615.20 : 1,214,422.80 = 336,056.80 : x
  2. Step 2: Convert to fraction form
    809,615.20/1,214,422.80 = 336,056.80/x
  3. Step 3: Cross multiply
    809,615.20x = 1,214,422.80 × 336,056.80
  4. Step 4: Simplify right side
    809,615.20x = 408,115,040,015.04
  5. Step 5: Solve for x
    x = 408,115,040,015.04/809,615.20
  6. Step 6: Final answer
    x = 504,085.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.