Home / 409,023.45-613,623.15-203,969.85

Finding the Fourth Proportional to 409,023.45, 613,623.15 and 203,969.85

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Solution

The fourth proportional to 409,023.45, 613,623.15 and 203,969.85 is: 305,998.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,023.45 : 613,623.15 = 203,969.85 : x
  2. Step 2: Convert to fraction form
    409,023.45/613,623.15 = 203,969.85/x
  3. Step 3: Cross multiply
    409,023.45x = 613,623.15 × 203,969.85
  4. Step 4: Simplify right side
    409,023.45x = 125,160,621,862.03
  5. Step 5: Solve for x
    x = 125,160,621,862.03/409,023.45
  6. Step 6: Final answer
    x = 305,998.65

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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.