Home / 1,191,827.24-1,643,111.78-809,189.80

Finding the Fourth Proportional to 1,191,827.24, 1,643,111.78 and 809,189.80

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Solution

The fourth proportional to 1,191,827.24, 1,643,111.78 and 809,189.80 is: 1,115,588.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,827.24 : 1,643,111.78 = 809,189.80 : x
  2. Step 2: Convert to fraction form
    1,191,827.24/1,643,111.78 = 809,189.80/x
  3. Step 3: Cross multiply
    1,191,827.24x = 1,643,111.78 × 809,189.80
  4. Step 4: Simplify right side
    1,191,827.24x = 1,329,589,292,635.84
  5. Step 5: Solve for x
    x = 1,329,589,292,635.84/1,191,827.24
  6. Step 6: Final answer
    x = 1,115,588.94

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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.