Home / 1,331,791.35-1,997,705.45-433,237.78

Finding the Fourth Proportional to 1,331,791.35, 1,997,705.45 and 433,237.78

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Solution

The fourth proportional to 1,331,791.35, 1,997,705.45 and 433,237.78 is: 649,862.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,791.35 : 1,997,705.45 = 433,237.78 : x
  2. Step 2: Convert to fraction form
    1,331,791.35/1,997,705.45 = 433,237.78/x
  3. Step 3: Cross multiply
    1,331,791.35x = 1,997,705.45 × 433,237.78
  4. Step 4: Simplify right side
    1,331,791.35x = 865,481,474,251.90
  5. Step 5: Solve for x
    x = 865,481,474,251.90/1,331,791.35
  6. Step 6: Final answer
    x = 649,862.66

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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.