Home / 1,511,428.38-2,085,739.92-823,112.28

Finding the Fourth Proportional to 1,511,428.38, 2,085,739.92 and 823,112.28

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Solution

The fourth proportional to 1,511,428.38, 2,085,739.92 and 823,112.28 is: 1,135,877.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,428.38 : 2,085,739.92 = 823,112.28 : x
  2. Step 2: Convert to fraction form
    1,511,428.38/2,085,739.92 = 823,112.28/x
  3. Step 3: Cross multiply
    1,511,428.38x = 2,085,739.92 × 823,112.28
  4. Step 4: Simplify right side
    1,511,428.38x = 1,716,798,141,038.22
  5. Step 5: Solve for x
    x = 1,716,798,141,038.22/1,511,428.38
  6. Step 6: Final answer
    x = 1,135,877.93

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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.