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Finding the Fourth Proportional to 2,489,893.74, 3,734,973.03 and 784,170.43

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Solution

The fourth proportional to 2,489,893.74, 3,734,973.03 and 784,170.43 is: 1,176,297.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489,893.74 : 3,734,973.03 = 784,170.43 : x
  2. Step 2: Convert to fraction form
    2,489,893.74/3,734,973.03 = 784,170.43/x
  3. Step 3: Cross multiply
    2,489,893.74x = 3,734,973.03 × 784,170.43
  4. Step 4: Simplify right side
    2,489,893.74x = 2,928,855,384,377.79
  5. Step 5: Solve for x
    x = 2,928,855,384,377.79/2,489,893.74
  6. Step 6: Final answer
    x = 1,176,297.34

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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.