Home / 1,421,169.57-1,961,325.81-809,348.22

Finding the Fourth Proportional to 1,421,169.57, 1,961,325.81 and 809,348.22

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Solution

The fourth proportional to 1,421,169.57, 1,961,325.81 and 809,348.22 is: 1,116,964.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,169.57 : 1,961,325.81 = 809,348.22 : x
  2. Step 2: Convert to fraction form
    1,421,169.57/1,961,325.81 = 809,348.22/x
  3. Step 3: Cross multiply
    1,421,169.57x = 1,961,325.81 × 809,348.22
  4. Step 4: Simplify right side
    1,421,169.57x = 1,587,395,553,163.56
  5. Step 5: Solve for x
    x = 1,587,395,553,163.56/1,421,169.57
  6. Step 6: Final answer
    x = 1,116,964.22

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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.