Home / 792,217.20-1,188,675.72-319,825.20

Finding the Fourth Proportional to 792,217.20, 1,188,675.72 and 319,825.20

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Solution

The fourth proportional to 792,217.20, 1,188,675.72 and 319,825.20 is: 479,879.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,217.20 : 1,188,675.72 = 319,825.20 : x
  2. Step 2: Convert to fraction form
    792,217.20/1,188,675.72 = 319,825.20/x
  3. Step 3: Cross multiply
    792,217.20x = 1,188,675.72 × 319,825.20
  4. Step 4: Simplify right side
    792,217.20x = 380,168,449,884.14
  5. Step 5: Solve for x
    x = 380,168,449,884.14/792,217.20
  6. Step 6: Final answer
    x = 479,879.07

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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.