Home / 1,511,463.90-2,085,822.39-823,137.22

Finding the Fourth Proportional to 1,511,463.90, 2,085,822.39 and 823,137.22

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Solution

The fourth proportional to 1,511,463.90, 2,085,822.39 and 823,137.22 is: 1,135,930.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,463.90 : 2,085,822.39 = 823,137.22 : x
  2. Step 2: Convert to fraction form
    1,511,463.90/2,085,822.39 = 823,137.22/x
  3. Step 3: Cross multiply
    1,511,463.90x = 2,085,822.39 × 823,137.22
  4. Step 4: Simplify right side
    1,511,463.90x = 1,716,918,043,518.36
  5. Step 5: Solve for x
    x = 1,716,918,043,518.36/1,511,463.90
  6. Step 6: Final answer
    x = 1,135,930.57

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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.