Home / 1,270,538.07-1,752,842.54-726,381.56

Finding the Fourth Proportional to 1,270,538.07, 1,752,842.54 and 726,381.56

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Solution

The fourth proportional to 1,270,538.07, 1,752,842.54 and 726,381.56 is: 1,002,120.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,538.07 : 1,752,842.54 = 726,381.56 : x
  2. Step 2: Convert to fraction form
    1,270,538.07/1,752,842.54 = 726,381.56/x
  3. Step 3: Cross multiply
    1,270,538.07x = 1,752,842.54 × 726,381.56
  4. Step 4: Simplify right side
    1,270,538.07x = 1,273,232,486,243.44
  5. Step 5: Solve for x
    x = 1,273,232,486,243.44/1,270,538.07
  6. Step 6: Final answer
    x = 1,002,120.69

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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.