Home / 1,093,571.40-1,640,357.10-978,425.85

Finding the Fourth Proportional to 1,093,571.40, 1,640,357.10 and 978,425.85

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Solution

The fourth proportional to 1,093,571.40, 1,640,357.10 and 978,425.85 is: 1,467,638.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093,571.40 : 1,640,357.10 = 978,425.85 : x
  2. Step 2: Convert to fraction form
    1,093,571.40/1,640,357.10 = 978,425.85/x
  3. Step 3: Cross multiply
    1,093,571.40x = 1,640,357.10 × 978,425.85
  4. Step 4: Simplify right side
    1,093,571.40x = 1,604,967,789,871.04
  5. Step 5: Solve for x
    x = 1,604,967,789,871.04/1,093,571.40
  6. Step 6: Final answer
    x = 1,467,638.78

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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.