Home / 1,289,503.44-1,779,382.22-806,121.77

Finding the Fourth Proportional to 1,289,503.44, 1,779,382.22 and 806,121.77

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Solution

The fourth proportional to 1,289,503.44, 1,779,382.22 and 806,121.77 is: 1,112,365.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,503.44 : 1,779,382.22 = 806,121.77 : x
  2. Step 2: Convert to fraction form
    1,289,503.44/1,779,382.22 = 806,121.77/x
  3. Step 3: Cross multiply
    1,289,503.44x = 1,779,382.22 × 806,121.77
  4. Step 4: Simplify right side
    1,289,503.44x = 1,434,398,731,765.41
  5. Step 5: Solve for x
    x = 1,434,398,731,765.41/1,289,503.44
  6. Step 6: Final answer
    x = 1,112,365.18

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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.