Home / 1,264,745.72-1,897,121.82-516,791.72

Finding the Fourth Proportional to 1,264,745.72, 1,897,121.82 and 516,791.72

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Solution

The fourth proportional to 1,264,745.72, 1,897,121.82 and 516,791.72 is: 775,188.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264,745.72 : 1,897,121.82 = 516,791.72 : x
  2. Step 2: Convert to fraction form
    1,264,745.72/1,897,121.82 = 516,791.72/x
  3. Step 3: Cross multiply
    1,264,745.72x = 1,897,121.82 × 516,791.72
  4. Step 4: Simplify right side
    1,264,745.72x = 980,416,848,407.33
  5. Step 5: Solve for x
    x = 980,416,848,407.33/1,264,745.72
  6. Step 6: Final answer
    x = 775,188.90

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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.