Home / 1,222,183.34-1,686,587.62-678,287.54

Finding the Fourth Proportional to 1,222,183.34, 1,686,587.62 and 678,287.54

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Solution

The fourth proportional to 1,222,183.34, 1,686,587.62 and 678,287.54 is: 936,022.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,183.34 : 1,686,587.62 = 678,287.54 : x
  2. Step 2: Convert to fraction form
    1,222,183.34/1,686,587.62 = 678,287.54/x
  3. Step 3: Cross multiply
    1,222,183.34x = 1,686,587.62 × 678,287.54
  4. Step 4: Simplify right side
    1,222,183.34x = 1,143,991,367,764.25
  5. Step 5: Solve for x
    x = 1,143,991,367,764.25/1,222,183.34
  6. Step 6: Final answer
    x = 936,022.71

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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.