Home / 1,515,235.20-2,091,036.75-826,912.44

Finding the Fourth Proportional to 1,515,235.20, 2,091,036.75 and 826,912.44

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Solution

The fourth proportional to 1,515,235.20, 2,091,036.75 and 826,912.44 is: 1,141,145.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,235.20 : 2,091,036.75 = 826,912.44 : x
  2. Step 2: Convert to fraction form
    1,515,235.20/2,091,036.75 = 826,912.44/x
  3. Step 3: Cross multiply
    1,515,235.20x = 2,091,036.75 × 826,912.44
  4. Step 4: Simplify right side
    1,515,235.20x = 1,729,104,301,072.17
  5. Step 5: Solve for x
    x = 1,729,104,301,072.17/1,515,235.20
  6. Step 6: Final answer
    x = 1,141,145.81

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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.