Home / 1,511,115.89-2,085,377.29-822,825.45

Finding the Fourth Proportional to 1,511,115.89, 2,085,377.29 and 822,825.45

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Solution

The fourth proportional to 1,511,115.89, 2,085,377.29 and 822,825.45 is: 1,135,519.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,115.89 : 2,085,377.29 = 822,825.45 : x
  2. Step 2: Convert to fraction form
    1,511,115.89/2,085,377.29 = 822,825.45/x
  3. Step 3: Cross multiply
    1,511,115.89x = 2,085,377.29 × 822,825.45
  4. Step 4: Simplify right side
    1,511,115.89x = 1,715,901,505,006.97
  5. Step 5: Solve for x
    x = 1,715,901,505,006.97/1,511,115.89
  6. Step 6: Final answer
    x = 1,135,519.47

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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.