Home / 1,891,618.80-2,610,433.89-1,212,555.30

Finding the Fourth Proportional to 1,891,618.80, 2,610,433.89 and 1,212,555.30

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Solution

The fourth proportional to 1,891,618.80, 2,610,433.89 and 1,212,555.30 is: 1,673,326.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891,618.80 : 2,610,433.89 = 1,212,555.30 : x
  2. Step 2: Convert to fraction form
    1,891,618.80/2,610,433.89 = 1,212,555.30/x
  3. Step 3: Cross multiply
    1,891,618.80x = 2,610,433.89 × 1,212,555.30
  4. Step 4: Simplify right side
    1,891,618.80x = 3,165,295,448,619.12
  5. Step 5: Solve for x
    x = 3,165,295,448,619.12/1,891,618.80
  6. Step 6: Final answer
    x = 1,673,326.28

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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.