Home / 1,222,183.33-1,686,587.62-678,287.53

Finding the Fourth Proportional to 1,222,183.33, 1,686,587.62 and 678,287.53

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Solution

The fourth proportional to 1,222,183.33, 1,686,587.62 and 678,287.53 is: 936,022.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,183.33 : 1,686,587.62 = 678,287.53 : x
  2. Step 2: Convert to fraction form
    1,222,183.33/1,686,587.62 = 678,287.53/x
  3. Step 3: Cross multiply
    1,222,183.33x = 1,686,587.62 × 678,287.53
  4. Step 4: Simplify right side
    1,222,183.33x = 1,143,991,350,898.38
  5. Step 5: Solve for x
    x = 1,143,991,350,898.38/1,222,183.33
  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.