Home / 1,991,091.30-2,986,628.39-551,770.57

Finding the Fourth Proportional to 1,991,091.30, 2,986,628.39 and 551,770.57

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Solution

The fourth proportional to 1,991,091.30, 2,986,628.39 and 551,770.57 is: 827,653.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,091.30 : 2,986,628.39 = 551,770.57 : x
  2. Step 2: Convert to fraction form
    1,991,091.30/2,986,628.39 = 551,770.57/x
  3. Step 3: Cross multiply
    1,991,091.30x = 2,986,628.39 × 551,770.57
  4. Step 4: Simplify right side
    1,991,091.30x = 1,647,933,649,128.48
  5. Step 5: Solve for x
    x = 1,647,933,649,128.48/1,991,091.30
  6. Step 6: Final answer
    x = 827,653.48

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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.