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Finding the Fourth Proportional to 861,793.77, 1,290,260.31 and 456,067

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Solution

The fourth proportional to 861,793.77, 1,290,260.31 and 456,067 is: 682,814.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,793.77 : 1,290,260.31 = 456,067 : x
  2. Step 2: Convert to fraction form
    861,793.77/1,290,260.31 = 456,067/x
  3. Step 3: Cross multiply
    861,793.77x = 1,290,260.31 × 456,067
  4. Step 4: Simplify right side
    861,793.77x = 588,445,147,660.60
  5. Step 5: Solve for x
    x = 588,445,147,660.60/861,793.77
  6. Step 6: Final answer
    x = 682,814.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.