Home / 1,382,021.46-1,907,163.72-770,160.76

Finding the Fourth Proportional to 1,382,021.46, 1,907,163.72 and 770,160.76

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Solution

The fourth proportional to 1,382,021.46, 1,907,163.72 and 770,160.76 is: 1,062,807.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,021.46 : 1,907,163.72 = 770,160.76 : x
  2. Step 2: Convert to fraction form
    1,382,021.46/1,907,163.72 = 770,160.76/x
  3. Step 3: Cross multiply
    1,382,021.46x = 1,907,163.72 × 770,160.76
  4. Step 4: Simplify right side
    1,382,021.46x = 1,468,822,660,039.63
  5. Step 5: Solve for x
    x = 1,468,822,660,039.63/1,382,021.46
  6. Step 6: Final answer
    x = 1,062,807.42

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Double scale
Find fourth proportional to 1,382,022.46, 1,907,165.10 and 770,161.76
Similar ratio
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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.