Home / 1,387,415.52-1,914,942.26-843,436.13

Finding the Fourth Proportional to 1,387,415.52, 1,914,942.26 and 843,436.13

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Solution

The fourth proportional to 1,387,415.52, 1,914,942.26 and 843,436.13 is: 1,164,129.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,415.52 : 1,914,942.26 = 843,436.13 : x
  2. Step 2: Convert to fraction form
    1,387,415.52/1,914,942.26 = 843,436.13/x
  3. Step 3: Cross multiply
    1,387,415.52x = 1,914,942.26 × 843,436.13
  4. Step 4: Simplify right side
    1,387,415.52x = 1,615,131,481,481.73
  5. Step 5: Solve for x
    x = 1,615,131,481,481.73/1,387,415.52
  6. Step 6: Final answer
    x = 1,164,129.61

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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.