Home / 1,305,175.38-1,800,984.69-724,395.66

Finding the Fourth Proportional to 1,305,175.38, 1,800,984.69 and 724,395.66

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Solution

The fourth proportional to 1,305,175.38, 1,800,984.69 and 724,395.66 is: 999,578.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,175.38 : 1,800,984.69 = 724,395.66 : x
  2. Step 2: Convert to fraction form
    1,305,175.38/1,800,984.69 = 724,395.66/x
  3. Step 3: Cross multiply
    1,305,175.38x = 1,800,984.69 × 724,395.66
  4. Step 4: Simplify right side
    1,305,175.38x = 1,304,625,493,162.45
  5. Step 5: Solve for x
    x = 1,304,625,493,162.45/1,305,175.38
  6. Step 6: Final answer
    x = 999,578.69

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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.