Home / 1,421,170.57-1,961,327.19-809,349.22

Finding the Fourth Proportional to 1,421,170.57, 1,961,327.19 and 809,349.22

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Solution

The fourth proportional to 1,421,170.57, 1,961,327.19 and 809,349.22 is: 1,116,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,170.57 : 1,961,327.19 = 809,349.22 : x
  2. Step 2: Convert to fraction form
    1,421,170.57/1,961,327.19 = 809,349.22/x
  3. Step 3: Cross multiply
    1,421,170.57x = 1,961,327.19 × 809,349.22
  4. Step 4: Simplify right side
    1,421,170.57x = 1,587,398,631,391.29
  5. Step 5: Solve for x
    x = 1,587,398,631,391.29/1,421,170.57
  6. Step 6: Final answer
    x = 1,116,965.60

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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.