Home / 1,222,182.33-1,686,586.24-678,286.53

Finding the Fourth Proportional to 1,222,182.33, 1,686,586.24 and 678,286.53

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Solution

The fourth proportional to 1,222,182.33, 1,686,586.24 and 678,286.53 is: 936,021.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,182.33 : 1,686,586.24 = 678,286.53 : x
  2. Step 2: Convert to fraction form
    1,222,182.33/1,686,586.24 = 678,286.53/x
  3. Step 3: Cross multiply
    1,222,182.33x = 1,686,586.24 × 678,286.53
  4. Step 4: Simplify right side
    1,222,182.33x = 1,143,988,728,275.35
  5. Step 5: Solve for x
    x = 1,143,988,728,275.35/1,222,182.33
  6. Step 6: Final answer
    x = 936,021.33

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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.