Home / 1,191,211.56-1,643,040.59-783,182.97

Finding the Fourth Proportional to 1,191,211.56, 1,643,040.59 and 783,182.97

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Solution

The fourth proportional to 1,191,211.56, 1,643,040.59 and 783,182.97 is: 1,080,245.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,211.56 : 1,643,040.59 = 783,182.97 : x
  2. Step 2: Convert to fraction form
    1,191,211.56/1,643,040.59 = 783,182.97/x
  3. Step 3: Cross multiply
    1,191,211.56x = 1,643,040.59 × 783,182.97
  4. Step 4: Simplify right side
    1,191,211.56x = 1,286,801,405,190.84
  5. Step 5: Solve for x
    x = 1,286,801,405,190.84/1,191,211.56
  6. Step 6: Final answer
    x = 1,080,245.90

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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.