Home / 2,640,112.35-3,961,834.43-1,123,792.86

Finding the Fourth Proportional to 2,640,112.35, 3,961,834.43 and 1,123,792.86

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Solution

The fourth proportional to 2,640,112.35, 3,961,834.43 and 1,123,792.86 is: 1,686,398.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640,112.35 : 3,961,834.43 = 1,123,792.86 : x
  2. Step 2: Convert to fraction form
    2,640,112.35/3,961,834.43 = 1,123,792.86/x
  3. Step 3: Cross multiply
    2,640,112.35x = 3,961,834.43 × 1,123,792.86
  4. Step 4: Simplify right side
    2,640,112.35x = 4,452,281,247,745.65
  5. Step 5: Solve for x
    x = 4,452,281,247,745.65/2,640,112.35
  6. Step 6: Final answer
    x = 1,686,398.40

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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.