Home / 1,333,272.22-1,839,911.96-721,435.38

Finding the Fourth Proportional to 1,333,272.22, 1,839,911.96 and 721,435.38

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Solution

The fourth proportional to 1,333,272.22, 1,839,911.96 and 721,435.38 is: 995,578.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,272.22 : 1,839,911.96 = 721,435.38 : x
  2. Step 2: Convert to fraction form
    1,333,272.22/1,839,911.96 = 721,435.38/x
  3. Step 3: Cross multiply
    1,333,272.22x = 1,839,911.96 × 721,435.38
  4. Step 4: Simplify right side
    1,333,272.22x = 1,327,377,584,029.14
  5. Step 5: Solve for x
    x = 1,327,377,584,029.14/1,333,272.22
  6. Step 6: Final answer
    x = 995,578.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.