Home / 1,261,765.89-1,892,947.19-408,836.12

Finding the Fourth Proportional to 1,261,765.89, 1,892,947.19 and 408,836.12

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Solution

The fourth proportional to 1,261,765.89, 1,892,947.19 and 408,836.12 is: 613,350.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,765.89 : 1,892,947.19 = 408,836.12 : x
  2. Step 2: Convert to fraction form
    1,261,765.89/1,892,947.19 = 408,836.12/x
  3. Step 3: Cross multiply
    1,261,765.89x = 1,892,947.19 × 408,836.12
  4. Step 4: Simplify right side
    1,261,765.89x = 773,905,173,015.59
  5. Step 5: Solve for x
    x = 773,905,173,015.59/1,261,765.89
  6. Step 6: Final answer
    x = 613,350.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.