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Finding the Fourth Proportional to 526,745.97, 789,885.68 and 378,379.89

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Solution

The fourth proportional to 526,745.97, 789,885.68 and 378,379.89 is: 567,402.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,745.97 : 789,885.68 = 378,379.89 : x
  2. Step 2: Convert to fraction form
    526,745.97/789,885.68 = 378,379.89/x
  3. Step 3: Cross multiply
    526,745.97x = 789,885.68 × 378,379.89
  4. Step 4: Simplify right side
    526,745.97x = 298,876,854,819.08
  5. Step 5: Solve for x
    x = 298,876,854,819.08/526,745.97
  6. Step 6: Final answer
    x = 567,402.26

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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.