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Finding the Fourth Proportional to 1,479,903, 2,042,280.78 and 800,854.08

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Solution

The fourth proportional to 1,479,903, 2,042,280.78 and 800,854.08 is: 1,105,186.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,479,903 : 2,042,280.78 = 800,854.08 : x
  2. Step 2: Convert to fraction form
    1,479,903/2,042,280.78 = 800,854.08/x
  3. Step 3: Cross multiply
    1,479,903x = 2,042,280.78 × 800,854.08
  4. Step 4: Simplify right side
    1,479,903x = 1,635,568,895,168.58
  5. Step 5: Solve for x
    x = 1,635,568,895,168.58/1,479,903
  6. Step 6: Final answer
    x = 1,105,186.55

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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.