Home / 1,997,135.72-2,991,745.11-930,710.78

Finding the Fourth Proportional to 1,997,135.72, 2,991,745.11 and 930,710.78

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Solution

The fourth proportional to 1,997,135.72, 2,991,745.11 and 930,710.78 is: 1,394,221.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,997,135.72 : 2,991,745.11 = 930,710.78 : x
  2. Step 2: Convert to fraction form
    1,997,135.72/2,991,745.11 = 930,710.78/x
  3. Step 3: Cross multiply
    1,997,135.72x = 2,991,745.11 × 930,710.78
  4. Step 4: Simplify right side
    1,997,135.72x = 2,784,449,432,368.65
  5. Step 5: Solve for x
    x = 2,784,449,432,368.65/1,997,135.72
  6. Step 6: Final answer
    x = 1,394,221.43

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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.