Home / 1,261,922.96-1,741,457.64-809,215.76

Finding the Fourth Proportional to 1,261,922.96, 1,741,457.64 and 809,215.76

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Solution

The fourth proportional to 1,261,922.96, 1,741,457.64 and 809,215.76 is: 1,116,720.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,922.96 : 1,741,457.64 = 809,215.76 : x
  2. Step 2: Convert to fraction form
    1,261,922.96/1,741,457.64 = 809,215.76/x
  3. Step 3: Cross multiply
    1,261,922.96x = 1,741,457.64 × 809,215.76
  4. Step 4: Simplify right side
    1,261,922.96x = 1,409,214,967,660.41
  5. Step 5: Solve for x
    x = 1,409,214,967,660.41/1,261,922.96
  6. Step 6: Final answer
    x = 1,116,720.29

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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.