Home / 1,115,044.38-1,538,637.82-618,315.78

Finding the Fourth Proportional to 1,115,044.38, 1,538,637.82 and 618,315.78

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Solution

The fourth proportional to 1,115,044.38, 1,538,637.82 and 618,315.78 is: 853,207.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,044.38 : 1,538,637.82 = 618,315.78 : x
  2. Step 2: Convert to fraction form
    1,115,044.38/1,538,637.82 = 618,315.78/x
  3. Step 3: Cross multiply
    1,115,044.38x = 1,538,637.82 × 618,315.78
  4. Step 4: Simplify right side
    1,115,044.38x = 951,364,043,810.80
  5. Step 5: Solve for x
    x = 951,364,043,810.80/1,115,044.38
  6. Step 6: Final answer
    x = 853,207.33

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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.