Home / 803,358.78-1,203,905.43-443,691.78

Finding the Fourth Proportional to 803,358.78, 1,203,905.43 and 443,691.78

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Solution

The fourth proportional to 803,358.78, 1,203,905.43 and 443,691.78 is: 664,912.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,358.78 : 1,203,905.43 = 443,691.78 : x
  2. Step 2: Convert to fraction form
    803,358.78/1,203,905.43 = 443,691.78/x
  3. Step 3: Cross multiply
    803,358.78x = 1,203,905.43 × 443,691.78
  4. Step 4: Simplify right side
    803,358.78x = 534,162,943,188.37
  5. Step 5: Solve for x
    x = 534,162,943,188.37/803,358.78
  6. Step 6: Final answer
    x = 664,912.06

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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.