Home / 725,472.72-1,088,207.78-192,993.76

Finding the Fourth Proportional to 725,472.72, 1,088,207.78 and 192,993.76

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Solution

The fourth proportional to 725,472.72, 1,088,207.78 and 192,993.76 is: 289,490.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,472.72 : 1,088,207.78 = 192,993.76 : x
  2. Step 2: Convert to fraction form
    725,472.72/1,088,207.78 = 192,993.76/x
  3. Step 3: Cross multiply
    725,472.72x = 1,088,207.78 × 192,993.76
  4. Step 4: Simplify right side
    725,472.72x = 210,017,311,123.45
  5. Step 5: Solve for x
    x = 210,017,311,123.45/725,472.72
  6. Step 6: Final answer
    x = 289,490.29

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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.