Home / 2,790,874.91-4,180,707.20-1,272,469.16

Finding the Fourth Proportional to 2,790,874.91, 4,180,707.20 and 1,272,469.16

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Solution

The fourth proportional to 2,790,874.91, 4,180,707.20 and 1,272,469.16 is: 1,906,148.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790,874.91 : 4,180,707.20 = 1,272,469.16 : x
  2. Step 2: Convert to fraction form
    2,790,874.91/4,180,707.20 = 1,272,469.16/x
  3. Step 3: Cross multiply
    2,790,874.91x = 4,180,707.20 × 1,272,469.16
  4. Step 4: Simplify right side
    2,790,874.91x = 5,319,820,992,622.89
  5. Step 5: Solve for x
    x = 5,319,820,992,622.89/2,790,874.91
  6. Step 6: Final answer
    x = 1,906,148.13

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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.