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Finding the Fourth Proportional to 842,305, 1,263,676.38 and 251,329

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Solution

The fourth proportional to 842,305, 1,263,676.38 and 251,329 is: 377,058.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,305 : 1,263,676.38 = 251,329 : x
  2. Step 2: Convert to fraction form
    842,305/1,263,676.38 = 251,329/x
  3. Step 3: Cross multiply
    842,305x = 1,263,676.38 × 251,329
  4. Step 4: Simplify right side
    842,305x = 317,598,520,909.02
  5. Step 5: Solve for x
    x = 317,598,520,909.02/842,305
  6. Step 6: Final answer
    x = 377,058.81

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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.