Home / 1,261,782.08-1,741,257.60-809,072

Finding the Fourth Proportional to 1,261,782.08, 1,741,257.60 and 809,072

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Solution

The fourth proportional to 1,261,782.08, 1,741,257.60 and 809,072 is: 1,116,518.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,782.08 : 1,741,257.60 = 809,072 : x
  2. Step 2: Convert to fraction form
    1,261,782.08/1,741,257.60 = 809,072/x
  3. Step 3: Cross multiply
    1,261,782.08x = 1,741,257.60 × 809,072
  4. Step 4: Simplify right side
    1,261,782.08x = 1,408,802,768,947.20
  5. Step 5: Solve for x
    x = 1,408,802,768,947.20/1,261,782.08
  6. Step 6: Final answer
    x = 1,116,518.29

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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.