Home / 1,820,970.92-2,512,940.38-1,005,175.14

Finding the Fourth Proportional to 1,820,970.92, 2,512,940.38 and 1,005,175.14

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Solution

The fourth proportional to 1,820,970.92, 2,512,940.38 and 1,005,175.14 is: 1,387,141.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820,970.92 : 2,512,940.38 = 1,005,175.14 : x
  2. Step 2: Convert to fraction form
    1,820,970.92/2,512,940.38 = 1,005,175.14/x
  3. Step 3: Cross multiply
    1,820,970.92x = 2,512,940.38 × 1,005,175.14
  4. Step 4: Simplify right side
    1,820,970.92x = 2,525,945,198,278.15
  5. Step 5: Solve for x
    x = 2,525,945,198,278.15/1,820,970.92
  6. Step 6: Final answer
    x = 1,387,141.97

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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.