Home / 668,481.90-1,003,067.49-443,997.66

Finding the Fourth Proportional to 668,481.90, 1,003,067.49 and 443,997.66

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Solution

The fourth proportional to 668,481.90, 1,003,067.49 and 443,997.66 is: 666,225.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,481.90 : 1,003,067.49 = 443,997.66 : x
  2. Step 2: Convert to fraction form
    668,481.90/1,003,067.49 = 443,997.66/x
  3. Step 3: Cross multiply
    668,481.90x = 1,003,067.49 × 443,997.66
  4. Step 4: Simplify right side
    668,481.90x = 445,359,618,382.07
  5. Step 5: Solve for x
    x = 445,359,618,382.07/668,481.90
  6. Step 6: Final answer
    x = 666,225.40

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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.