Home / 792,739.97-1,189,067.53-280,369.61

Finding the Fourth Proportional to 792,739.97, 1,189,067.53 and 280,369.61

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Solution

The fourth proportional to 792,739.97, 1,189,067.53 and 280,369.61 is: 420,539.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,739.97 : 1,189,067.53 = 280,369.61 : x
  2. Step 2: Convert to fraction form
    792,739.97/1,189,067.53 = 280,369.61/x
  3. Step 3: Cross multiply
    792,739.97x = 1,189,067.53 × 280,369.61
  4. Step 4: Simplify right side
    792,739.97x = 333,378,399,649.76
  5. Step 5: Solve for x
    x = 333,378,399,649.76/792,739.97
  6. Step 6: Final answer
    x = 420,539.41

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1.5x scale

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.