Home / 2,990,487.91-4,487,471.81-1,261,250.25

Finding the Fourth Proportional to 2,990,487.91, 4,487,471.81 and 1,261,250.25

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Solution

The fourth proportional to 2,990,487.91, 4,487,471.81 and 1,261,250.25 is: 1,892,609.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990,487.91 : 4,487,471.81 = 1,261,250.25 : x
  2. Step 2: Convert to fraction form
    2,990,487.91/4,487,471.81 = 1,261,250.25/x
  3. Step 3: Cross multiply
    2,990,487.91x = 4,487,471.81 × 1,261,250.25
  4. Step 4: Simplify right side
    2,990,487.91x = 5,659,824,930,528.28
  5. Step 5: Solve for x
    x = 5,659,824,930,528.28/2,990,487.91
  6. Step 6: Final answer
    x = 1,892,609.20

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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.