Home / 1,479,921.21-2,042,291.25-800,857.71

Finding the Fourth Proportional to 1,479,921.21, 2,042,291.25 and 800,857.71

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Solution

The fourth proportional to 1,479,921.21, 2,042,291.25 and 800,857.71 is: 1,105,183.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,479,921.21 : 2,042,291.25 = 800,857.71 : x
  2. Step 2: Convert to fraction form
    1,479,921.21/2,042,291.25 = 800,857.71/x
  3. Step 3: Cross multiply
    1,479,921.21x = 2,042,291.25 × 800,857.71
  4. Step 4: Simplify right side
    1,479,921.21x = 1,635,584,693,628.04
  5. Step 5: Solve for x
    x = 1,635,584,693,628.04/1,479,921.21
  6. Step 6: Final answer
    x = 1,105,183.63

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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.