Home / 1,101,811.97-1,520,648.89-618,403.56

Finding the Fourth Proportional to 1,101,811.97, 1,520,648.89 and 618,403.56

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Solution

The fourth proportional to 1,101,811.97, 1,520,648.89 and 618,403.56 is: 853,480.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,811.97 : 1,520,648.89 = 618,403.56 : x
  2. Step 2: Convert to fraction form
    1,101,811.97/1,520,648.89 = 618,403.56/x
  3. Step 3: Cross multiply
    1,101,811.97x = 1,520,648.89 × 618,403.56
  4. Step 4: Simplify right side
    1,101,811.97x = 940,374,691,869.78
  5. Step 5: Solve for x
    x = 940,374,691,869.78/1,101,811.97
  6. Step 6: Final answer
    x = 853,480.19

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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.