Home / 1,489,418.70-2,234,128.05-892,221.90

Finding the Fourth Proportional to 1,489,418.70, 2,234,128.05 and 892,221.90

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Solution

The fourth proportional to 1,489,418.70, 2,234,128.05 and 892,221.90 is: 1,338,332.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,418.70 : 2,234,128.05 = 892,221.90 : x
  2. Step 2: Convert to fraction form
    1,489,418.70/2,234,128.05 = 892,221.90/x
  3. Step 3: Cross multiply
    1,489,418.70x = 2,234,128.05 × 892,221.90
  4. Step 4: Simplify right side
    1,489,418.70x = 1,993,337,973,614.30
  5. Step 5: Solve for x
    x = 1,993,337,973,614.30/1,489,418.70
  6. Step 6: Final answer
    x = 1,338,332.85

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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.