Home / 691,239.69-1,036,761.12-217,863.54

Finding the Fourth Proportional to 691,239.69, 1,036,761.12 and 217,863.54

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Solution

The fourth proportional to 691,239.69, 1,036,761.12 and 217,863.54 is: 326,764.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,239.69 : 1,036,761.12 = 217,863.54 : x
  2. Step 2: Convert to fraction form
    691,239.69/1,036,761.12 = 217,863.54/x
  3. Step 3: Cross multiply
    691,239.69x = 1,036,761.12 × 217,863.54
  4. Step 4: Simplify right side
    691,239.69x = 225,872,447,737.57
  5. Step 5: Solve for x
    x = 225,872,447,737.57/691,239.69
  6. Step 6: Final answer
    x = 326,764.29

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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.