Home / 809,328.80-1,214,479.20-335,964.80

Finding the Fourth Proportional to 809,328.80, 1,214,479.20 and 335,964.80

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Solution

The fourth proportional to 809,328.80, 1,214,479.20 and 335,964.80 is: 504,148.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,328.80 : 1,214,479.20 = 335,964.80 : x
  2. Step 2: Convert to fraction form
    809,328.80/1,214,479.20 = 335,964.80/x
  3. Step 3: Cross multiply
    809,328.80x = 1,214,479.20 × 335,964.80
  4. Step 4: Simplify right side
    809,328.80x = 408,022,261,532.16
  5. Step 5: Solve for x
    x = 408,022,261,532.16/809,328.80
  6. Step 6: Final answer
    x = 504,148.95

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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.