Home / 694,103.60-1,040,464.20-319,473.20

Finding the Fourth Proportional to 694,103.60, 1,040,464.20 and 319,473.20

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Solution

The fourth proportional to 694,103.60, 1,040,464.20 and 319,473.20 is: 478,891.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,103.60 : 1,040,464.20 = 319,473.20 : x
  2. Step 2: Convert to fraction form
    694,103.60/1,040,464.20 = 319,473.20/x
  3. Step 3: Cross multiply
    694,103.60x = 1,040,464.20 × 319,473.20
  4. Step 4: Simplify right side
    694,103.60x = 332,400,427,459.44
  5. Step 5: Solve for x
    x = 332,400,427,459.44/694,103.60
  6. Step 6: Final answer
    x = 478,891.66

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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.