Home / 789,091.80-1,183,200.30-339,736.20

Finding the Fourth Proportional to 789,091.80, 1,183,200.30 and 339,736.20

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Solution

The fourth proportional to 789,091.80, 1,183,200.30 and 339,736.20 is: 509,415.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,091.80 : 1,183,200.30 = 339,736.20 : x
  2. Step 2: Convert to fraction form
    789,091.80/1,183,200.30 = 339,736.20/x
  3. Step 3: Cross multiply
    789,091.80x = 1,183,200.30 × 339,736.20
  4. Step 4: Simplify right side
    789,091.80x = 401,975,973,760.86
  5. Step 5: Solve for x
    x = 401,975,973,760.86/789,091.80
  6. Step 6: Final answer
    x = 509,415.98

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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.