Home / 1,912,489.32-2,867,819.42-1,113,998.76

Finding the Fourth Proportional to 1,912,489.32, 2,867,819.42 and 1,113,998.76

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Solution

The fourth proportional to 1,912,489.32, 2,867,819.42 and 1,113,998.76 is: 1,670,465.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912,489.32 : 2,867,819.42 = 1,113,998.76 : x
  2. Step 2: Convert to fraction form
    1,912,489.32/2,867,819.42 = 1,113,998.76/x
  3. Step 3: Cross multiply
    1,912,489.32x = 2,867,819.42 × 1,113,998.76
  4. Step 4: Simplify right side
    1,912,489.32x = 3,194,747,277,783.92
  5. Step 5: Solve for x
    x = 3,194,747,277,783.92/1,912,489.32
  6. Step 6: Final answer
    x = 1,670,465.42

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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.