Home / 3,970,720.91-5,479,999.77-2,339,636.87

Finding the Fourth Proportional to 3,970,720.91, 5,479,999.77 and 2,339,636.87

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Solution

The fourth proportional to 3,970,720.91, 5,479,999.77 and 2,339,636.87 is: 3,228,937.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970,720.91 : 5,479,999.77 = 2,339,636.87 : x
  2. Step 2: Convert to fraction form
    3,970,720.91/5,479,999.77 = 2,339,636.87/x
  3. Step 3: Cross multiply
    3,970,720.91x = 5,479,999.77 × 2,339,636.87
  4. Step 4: Simplify right side
    3,970,720.91x = 12,821,209,482,083.52
  5. Step 5: Solve for x
    x = 12,821,209,482,083.52/3,970,720.91
  6. Step 6: Final answer
    x = 3,228,937.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.