Home / 1,691,369.92-2,532,078.24-1,129,009.60

Finding the Fourth Proportional to 1,691,369.92, 2,532,078.24 and 1,129,009.60

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Solution

The fourth proportional to 1,691,369.92, 2,532,078.24 and 1,129,009.60 is: 1,690,192.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691,369.92 : 2,532,078.24 = 1,129,009.60 : x
  2. Step 2: Convert to fraction form
    1,691,369.92/2,532,078.24 = 1,129,009.60/x
  3. Step 3: Cross multiply
    1,691,369.92x = 2,532,078.24 × 1,129,009.60
  4. Step 4: Simplify right side
    1,691,369.92x = 2,858,740,640,911.10
  5. Step 5: Solve for x
    x = 2,858,740,640,911.10/1,691,369.92
  6. Step 6: Final answer
    x = 1,690,192.43

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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.