Home / 1,378,720.46-1,902,572.82-797,850.56

Finding the Fourth Proportional to 1,378,720.46, 1,902,572.82 and 797,850.56

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Solution

The fourth proportional to 1,378,720.46, 1,902,572.82 and 797,850.56 is: 1,100,998.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,720.46 : 1,902,572.82 = 797,850.56 : x
  2. Step 2: Convert to fraction form
    1,378,720.46/1,902,572.82 = 797,850.56/x
  3. Step 3: Cross multiply
    1,378,720.46x = 1,902,572.82 × 797,850.56
  4. Step 4: Simplify right side
    1,378,720.46x = 1,517,968,789,877.78
  5. Step 5: Solve for x
    x = 1,517,968,789,877.78/1,378,720.46
  6. Step 6: Final answer
    x = 1,100,998.23

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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.