Home / 790,843.66-1,091,358.81-428,259.22

Finding the Fourth Proportional to 790,843.66, 1,091,358.81 and 428,259.22

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Solution

The fourth proportional to 790,843.66, 1,091,358.81 and 428,259.22 is: 590,994.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,843.66 : 1,091,358.81 = 428,259.22 : x
  2. Step 2: Convert to fraction form
    790,843.66/1,091,358.81 = 428,259.22/x
  3. Step 3: Cross multiply
    790,843.66x = 1,091,358.81 × 428,259.22
  4. Step 4: Simplify right side
    790,843.66x = 467,384,469,982.33
  5. Step 5: Solve for x
    x = 467,384,469,982.33/790,843.66
  6. Step 6: Final answer
    x = 590,994.78

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1.5x scale

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.