Home / 1,328,620.60-1,992,930.90-331,348.60

Finding the Fourth Proportional to 1,328,620.60, 1,992,930.90 and 331,348.60

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Solution

The fourth proportional to 1,328,620.60, 1,992,930.90 and 331,348.60 is: 497,022.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,620.60 : 1,992,930.90 = 331,348.60 : x
  2. Step 2: Convert to fraction form
    1,328,620.60/1,992,930.90 = 331,348.60/x
  3. Step 3: Cross multiply
    1,328,620.60x = 1,992,930.90 × 331,348.60
  4. Step 4: Simplify right side
    1,328,620.60x = 660,354,863,611.74
  5. Step 5: Solve for x
    x = 660,354,863,611.74/1,328,620.60
  6. Step 6: Final answer
    x = 497,022.90

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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.