Home / 1,221,778.86-1,832,229.09-422,843.58

Finding the Fourth Proportional to 1,221,778.86, 1,832,229.09 and 422,843.58

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Solution

The fourth proportional to 1,221,778.86, 1,832,229.09 and 422,843.58 is: 634,113.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,778.86 : 1,832,229.09 = 422,843.58 : x
  2. Step 2: Convert to fraction form
    1,221,778.86/1,832,229.09 = 422,843.58/x
  3. Step 3: Cross multiply
    1,221,778.86x = 1,832,229.09 × 422,843.58
  4. Step 4: Simplify right side
    1,221,778.86x = 774,746,307,795.74
  5. Step 5: Solve for x
    x = 774,746,307,795.74/1,221,778.86
  6. Step 6: Final answer
    x = 634,113.37

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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.