Home / 669,300.71-1,003,738.23-219,917.57

Finding the Fourth Proportional to 669,300.71, 1,003,738.23 and 219,917.57

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Solution

The fourth proportional to 669,300.71, 1,003,738.23 and 219,917.57 is: 329,806.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,300.71 : 1,003,738.23 = 219,917.57 : x
  2. Step 2: Convert to fraction form
    669,300.71/1,003,738.23 = 219,917.57/x
  3. Step 3: Cross multiply
    669,300.71x = 1,003,738.23 × 219,917.57
  4. Step 4: Simplify right side
    669,300.71x = 220,739,667,439.01
  5. Step 5: Solve for x
    x = 220,739,667,439.01/669,300.71
  6. Step 6: Final answer
    x = 329,806.42

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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.