Home / 725,215.51-1,087,722.82-192,779.83

Finding the Fourth Proportional to 725,215.51, 1,087,722.82 and 192,779.83

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Solution

The fourth proportional to 725,215.51, 1,087,722.82 and 192,779.83 is: 289,143.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,215.51 : 1,087,722.82 = 192,779.83 : x
  2. Step 2: Convert to fraction form
    725,215.51/1,087,722.82 = 192,779.83/x
  3. Step 3: Cross multiply
    725,215.51x = 1,087,722.82 × 192,779.83
  4. Step 4: Simplify right side
    725,215.51x = 209,691,020,326.72
  5. Step 5: Solve for x
    x = 209,691,020,326.72/725,215.51
  6. Step 6: Final answer
    x = 289,143.04

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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.