Home / 1,485,131.75-2,227,340.82-685,645.19

Finding the Fourth Proportional to 1,485,131.75, 2,227,340.82 and 685,645.19

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Solution

The fourth proportional to 1,485,131.75, 2,227,340.82 and 685,645.19 is: 1,028,303.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485,131.75 : 2,227,340.82 = 685,645.19 : x
  2. Step 2: Convert to fraction form
    1,485,131.75/2,227,340.82 = 685,645.19/x
  3. Step 3: Cross multiply
    1,485,131.75x = 2,227,340.82 × 685,645.19
  4. Step 4: Simplify right side
    1,485,131.75x = 1,527,165,519,723.66
  5. Step 5: Solve for x
    x = 1,527,165,519,723.66/1,485,131.75
  6. Step 6: Final answer
    x = 1,028,303.06

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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.