Home / 1,109,615.82-1,531,182.62-679,837.52

Finding the Fourth Proportional to 1,109,615.82, 1,531,182.62 and 679,837.52

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Solution

The fourth proportional to 1,109,615.82, 1,531,182.62 and 679,837.52 is: 938,122.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,615.82 : 1,531,182.62 = 679,837.52 : x
  2. Step 2: Convert to fraction form
    1,109,615.82/1,531,182.62 = 679,837.52/x
  3. Step 3: Cross multiply
    1,109,615.82x = 1,531,182.62 × 679,837.52
  4. Step 4: Simplify right side
    1,109,615.82x = 1,040,955,387,391.99
  5. Step 5: Solve for x
    x = 1,040,955,387,391.99/1,109,615.82
  6. Step 6: Final answer
    x = 938,122.34

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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.