Home / 1,993,175.20-2,990,237.97-645,338.22

Finding the Fourth Proportional to 1,993,175.20, 2,990,237.97 and 645,338.22

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Solution

The fourth proportional to 1,993,175.20, 2,990,237.97 and 645,338.22 is: 968,161.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,175.20 : 2,990,237.97 = 645,338.22 : x
  2. Step 2: Convert to fraction form
    1,993,175.20/2,990,237.97 = 645,338.22/x
  3. Step 3: Cross multiply
    1,993,175.20x = 2,990,237.97 × 645,338.22
  4. Step 4: Simplify right side
    1,993,175.20x = 1,929,714,848,936.21
  5. Step 5: Solve for x
    x = 1,929,714,848,936.21/1,993,175.20
  6. Step 6: Final answer
    x = 968,161.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.