Home / 1,382,021.09-1,907,163.19-770,160.39

Finding the Fourth Proportional to 1,382,021.09, 1,907,163.19 and 770,160.39

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Solution

The fourth proportional to 1,382,021.09, 1,907,163.19 and 770,160.39 is: 1,062,806.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,021.09 : 1,907,163.19 = 770,160.39 : x
  2. Step 2: Convert to fraction form
    1,382,021.09/1,907,163.19 = 770,160.39/x
  3. Step 3: Cross multiply
    1,382,021.09x = 1,907,163.19 × 770,160.39
  4. Step 4: Simplify right side
    1,382,021.09x = 1,468,821,546,204.04
  5. Step 5: Solve for x
    x = 1,468,821,546,204.04/1,382,021.09
  6. Step 6: Final answer
    x = 1,062,806.90

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1.5x scale

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.