Home / 1,489,288.11-2,055,226.53-810,229.47

Finding the Fourth Proportional to 1,489,288.11, 2,055,226.53 and 810,229.47

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Solution

The fourth proportional to 1,489,288.11, 2,055,226.53 and 810,229.47 is: 1,118,121.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,288.11 : 2,055,226.53 = 810,229.47 : x
  2. Step 2: Convert to fraction form
    1,489,288.11/2,055,226.53 = 810,229.47/x
  3. Step 3: Cross multiply
    1,489,288.11x = 2,055,226.53 × 810,229.47
  4. Step 4: Simplify right side
    1,489,288.11x = 1,665,205,102,131.84
  5. Step 5: Solve for x
    x = 1,665,205,102,131.84/1,489,288.11
  6. Step 6: Final answer
    x = 1,118,121.53

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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.