Home / 2,080,422.09-2,870,781.04-1,305,805.32

Finding the Fourth Proportional to 2,080,422.09, 2,870,781.04 and 1,305,805.32

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Solution

The fourth proportional to 2,080,422.09, 2,870,781.04 and 1,305,805.32 is: 1,801,884.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080,422.09 : 2,870,781.04 = 1,305,805.32 : x
  2. Step 2: Convert to fraction form
    2,080,422.09/2,870,781.04 = 1,305,805.32/x
  3. Step 3: Cross multiply
    2,080,422.09x = 2,870,781.04 × 1,305,805.32
  4. Step 4: Simplify right side
    2,080,422.09x = 3,748,681,133,704.20
  5. Step 5: Solve for x
    x = 3,748,681,133,704.20/2,080,422.09
  6. Step 6: Final answer
    x = 1,801,884.90

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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.