Home / 668,313.72-1,002,657.42-219,350.43

Finding the Fourth Proportional to 668,313.72, 1,002,657.42 and 219,350.43

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Solution

The fourth proportional to 668,313.72, 1,002,657.42 and 219,350.43 is: 329,086.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,313.72 : 1,002,657.42 = 219,350.43 : x
  2. Step 2: Convert to fraction form
    668,313.72/1,002,657.42 = 219,350.43/x
  3. Step 3: Cross multiply
    668,313.72x = 1,002,657.42 × 219,350.43
  4. Step 4: Simplify right side
    668,313.72x = 219,933,336,219.69
  5. Step 5: Solve for x
    x = 219,933,336,219.69/668,313.72
  6. Step 6: Final answer
    x = 329,086.97

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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.