Home / 2,857,197.78-4,286,451.21-1,238,238.42

Finding the Fourth Proportional to 2,857,197.78, 4,286,451.21 and 1,238,238.42

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Solution

The fourth proportional to 2,857,197.78, 4,286,451.21 and 1,238,238.42 is: 1,857,641.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,857,197.78 : 4,286,451.21 = 1,238,238.42 : x
  2. Step 2: Convert to fraction form
    2,857,197.78/4,286,451.21 = 1,238,238.42/x
  3. Step 3: Cross multiply
    2,857,197.78x = 4,286,451.21 × 1,238,238.42
  4. Step 4: Simplify right side
    2,857,197.78x = 5,307,648,573,677.49
  5. Step 5: Solve for x
    x = 5,307,648,573,677.49/2,857,197.78
  6. Step 6: Final answer
    x = 1,857,641.29

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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.