Home / 809,329.30-1,214,479.95-335,965.30

Finding the Fourth Proportional to 809,329.30, 1,214,479.95 and 335,965.30

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Solution

The fourth proportional to 809,329.30, 1,214,479.95 and 335,965.30 is: 504,149.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,329.30 : 1,214,479.95 = 335,965.30 : x
  2. Step 2: Convert to fraction form
    809,329.30/1,214,479.95 = 335,965.30/x
  3. Step 3: Cross multiply
    809,329.30x = 1,214,479.95 × 335,965.30
  4. Step 4: Simplify right side
    809,329.30x = 408,023,120,745.74
  5. Step 5: Solve for x
    x = 408,023,120,745.74/809,329.30
  6. Step 6: Final answer
    x = 504,149.70

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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.