Home / 1,279,067.28-1,916,770.32-939,444

Finding the Fourth Proportional to 1,279,067.28, 1,916,770.32 and 939,444

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Solution

The fourth proportional to 1,279,067.28, 1,916,770.32 and 939,444 is: 1,407,821.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,067.28 : 1,916,770.32 = 939,444 : x
  2. Step 2: Convert to fraction form
    1,279,067.28/1,916,770.32 = 939,444/x
  3. Step 3: Cross multiply
    1,279,067.28x = 1,916,770.32 × 939,444
  4. Step 4: Simplify right side
    1,279,067.28x = 1,800,698,376,502.08
  5. Step 5: Solve for x
    x = 1,800,698,376,502.08/1,279,067.28
  6. Step 6: Final answer
    x = 1,407,821.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.