Home / 2,128,046.20-3,192,069.30-865,223.80

Finding the Fourth Proportional to 2,128,046.20, 3,192,069.30 and 865,223.80

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Solution

The fourth proportional to 2,128,046.20, 3,192,069.30 and 865,223.80 is: 1,297,835.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,046.20 : 3,192,069.30 = 865,223.80 : x
  2. Step 2: Convert to fraction form
    2,128,046.20/3,192,069.30 = 865,223.80/x
  3. Step 3: Cross multiply
    2,128,046.20x = 3,192,069.30 × 865,223.80
  4. Step 4: Simplify right side
    2,128,046.20x = 2,761,854,329,609.34
  5. Step 5: Solve for x
    x = 2,761,854,329,609.34/2,128,046.20
  6. Step 6: Final answer
    x = 1,297,835.70

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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.