Home / 3,428,007.89-5,140,400.13-1,267,540.25

Finding the Fourth Proportional to 3,428,007.89, 5,140,400.13 and 1,267,540.25

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Solution

The fourth proportional to 3,428,007.89, 5,140,400.13 and 1,267,540.25 is: 1,900,714.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428,007.89 : 5,140,400.13 = 1,267,540.25 : x
  2. Step 2: Convert to fraction form
    3,428,007.89/5,140,400.13 = 1,267,540.25/x
  3. Step 3: Cross multiply
    3,428,007.89x = 5,140,400.13 × 1,267,540.25
  4. Step 4: Simplify right side
    3,428,007.89x = 6,515,664,040,178.23
  5. Step 5: Solve for x
    x = 6,515,664,040,178.23/3,428,007.89
  6. Step 6: Final answer
    x = 1,900,714.43

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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.