Home / 1,143,912.45-1,578,546.21-627,653.46

Finding the Fourth Proportional to 1,143,912.45, 1,578,546.21 and 627,653.46

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Solution

The fourth proportional to 1,143,912.45, 1,578,546.21 and 627,653.46 is: 866,132.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,912.45 : 1,578,546.21 = 627,653.46 : x
  2. Step 2: Convert to fraction form
    1,143,912.45/1,578,546.21 = 627,653.46/x
  3. Step 3: Cross multiply
    1,143,912.45x = 1,578,546.21 × 627,653.46
  4. Step 4: Simplify right side
    1,143,912.45x = 990,779,990,476.39
  5. Step 5: Solve for x
    x = 990,779,990,476.39/1,143,912.45
  6. Step 6: Final answer
    x = 866,132.71

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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.