Home / 3,181,471.75-4,390,394.11-1,731,142.20

Finding the Fourth Proportional to 3,181,471.75, 4,390,394.11 and 1,731,142.20

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Solution

The fourth proportional to 3,181,471.75, 4,390,394.11 and 1,731,142.20 is: 2,388,956.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181,471.75 : 4,390,394.11 = 1,731,142.20 : x
  2. Step 2: Convert to fraction form
    3,181,471.75/4,390,394.11 = 1,731,142.20/x
  3. Step 3: Cross multiply
    3,181,471.75x = 4,390,394.11 × 1,731,142.20
  4. Step 4: Simplify right side
    3,181,471.75x = 7,600,396,503,650.50
  5. Step 5: Solve for x
    x = 7,600,396,503,650.50/3,181,471.75
  6. Step 6: Final answer
    x = 2,388,956.15

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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.