Home / 1,489,279.72-2,055,214.94-810,221.08

Finding the Fourth Proportional to 1,489,279.72, 2,055,214.94 and 810,221.08

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Solution

The fourth proportional to 1,489,279.72, 2,055,214.94 and 810,221.08 is: 1,118,109.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,279.72 : 2,055,214.94 = 810,221.08 : x
  2. Step 2: Convert to fraction form
    1,489,279.72/2,055,214.94 = 810,221.08/x
  3. Step 3: Cross multiply
    1,489,279.72x = 2,055,214.94 × 810,221.08
  4. Step 4: Simplify right side
    1,489,279.72x = 1,665,178,468,318.94
  5. Step 5: Solve for x
    x = 1,665,178,468,318.94/1,489,279.72
  6. Step 6: Final answer
    x = 1,118,109.95

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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.