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Finding the Fourth Proportional to 801,018, 1,105,408.08 and 443,322

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Solution

The fourth proportional to 801,018, 1,105,408.08 and 443,322 is: 611,786.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,018 : 1,105,408.08 = 443,322 : x
  2. Step 2: Convert to fraction form
    801,018/1,105,408.08 = 443,322/x
  3. Step 3: Cross multiply
    801,018x = 1,105,408.08 × 443,322
  4. Step 4: Simplify right side
    801,018x = 490,051,720,841.76
  5. Step 5: Solve for x
    x = 490,051,720,841.76/801,018
  6. Step 6: Final answer
    x = 611,786.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.