Home / 1,185,286.27-1,635,695.07-641,422.03

Finding the Fourth Proportional to 1,185,286.27, 1,635,695.07 and 641,422.03

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Solution

The fourth proportional to 1,185,286.27, 1,635,695.07 and 641,422.03 is: 885,162.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,286.27 : 1,635,695.07 = 641,422.03 : x
  2. Step 2: Convert to fraction form
    1,185,286.27/1,635,695.07 = 641,422.03/x
  3. Step 3: Cross multiply
    1,185,286.27x = 1,635,695.07 × 641,422.03
  4. Step 4: Simplify right side
    1,185,286.27x = 1,049,170,852,260.39
  5. Step 5: Solve for x
    x = 1,049,170,852,260.39/1,185,286.27
  6. Step 6: Final answer
    x = 885,162.41

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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.