Home / 1,222,316.88-1,686,717.26-678,426.18

Finding the Fourth Proportional to 1,222,316.88, 1,686,717.26 and 678,426.18

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Solution

The fourth proportional to 1,222,316.88, 1,686,717.26 and 678,426.18 is: 936,183.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,316.88 : 1,686,717.26 = 678,426.18 : x
  2. Step 2: Convert to fraction form
    1,222,316.88/1,686,717.26 = 678,426.18/x
  3. Step 3: Cross multiply
    1,222,316.88x = 1,686,717.26 × 678,426.18
  4. Step 4: Simplify right side
    1,222,316.88x = 1,144,313,147,441.87
  5. Step 5: Solve for x
    x = 1,144,313,147,441.87/1,222,316.88
  6. Step 6: Final answer
    x = 936,183.71

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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.