Home / 2,057,921.90-3,086,999.49-638,179.82

Finding the Fourth Proportional to 2,057,921.90, 3,086,999.49 and 638,179.82

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Solution

The fourth proportional to 2,057,921.90, 3,086,999.49 and 638,179.82 is: 957,305.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,057,921.90 : 3,086,999.49 = 638,179.82 : x
  2. Step 2: Convert to fraction form
    2,057,921.90/3,086,999.49 = 638,179.82/x
  3. Step 3: Cross multiply
    2,057,921.90x = 3,086,999.49 × 638,179.82
  4. Step 4: Simplify right side
    2,057,921.90x = 1,970,060,778,868.29
  5. Step 5: Solve for x
    x = 1,970,060,778,868.29/2,057,921.90
  6. Step 6: Final answer
    x = 957,305.90

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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.