Home / 725,471.72-1,088,206.28-192,992.76

Finding the Fourth Proportional to 725,471.72, 1,088,206.28 and 192,992.76

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Solution

The fourth proportional to 725,471.72, 1,088,206.28 and 192,992.76 is: 289,488.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,471.72 : 1,088,206.28 = 192,992.76 : x
  2. Step 2: Convert to fraction form
    725,471.72/1,088,206.28 = 192,992.76/x
  3. Step 3: Cross multiply
    725,471.72x = 1,088,206.28 × 192,992.76
  4. Step 4: Simplify right side
    725,471.72x = 210,015,938,590.36
  5. Step 5: Solve for x
    x = 210,015,938,590.36/725,471.72
  6. Step 6: Final answer
    x = 289,488.80

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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.