Home / 792,081.80-1,188,111.90-259,620.20

Finding the Fourth Proportional to 792,081.80, 1,188,111.90 and 259,620.20

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Solution

The fourth proportional to 792,081.80, 1,188,111.90 and 259,620.20 is: 389,426.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,081.80 : 1,188,111.90 = 259,620.20 : x
  2. Step 2: Convert to fraction form
    792,081.80/1,188,111.90 = 259,620.20/x
  3. Step 3: Cross multiply
    792,081.80x = 1,188,111.90 × 259,620.20
  4. Step 4: Simplify right side
    792,081.80x = 308,457,849,100.38
  5. Step 5: Solve for x
    x = 308,457,849,100.38/792,081.80
  6. Step 6: Final answer
    x = 389,426.76

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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.