Home / 881,181.16-1,321,421.82-319,909.48

Finding the Fourth Proportional to 881,181.16, 1,321,421.82 and 319,909.48

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Solution

The fourth proportional to 881,181.16, 1,321,421.82 and 319,909.48 is: 479,737.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,181.16 : 1,321,421.82 = 319,909.48 : x
  2. Step 2: Convert to fraction form
    881,181.16/1,321,421.82 = 319,909.48/x
  3. Step 3: Cross multiply
    881,181.16x = 1,321,421.82 × 319,909.48
  4. Step 4: Simplify right side
    881,181.16x = 422,735,367,296.85
  5. Step 5: Solve for x
    x = 422,735,367,296.85/881,181.16
  6. Step 6: Final answer
    x = 479,737.18

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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.