Home / 1,518,979.60-2,278,469.40-620,122.60

Finding the Fourth Proportional to 1,518,979.60, 2,278,469.40 and 620,122.60

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Solution

The fourth proportional to 1,518,979.60, 2,278,469.40 and 620,122.60 is: 930,183.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518,979.60 : 2,278,469.40 = 620,122.60 : x
  2. Step 2: Convert to fraction form
    1,518,979.60/2,278,469.40 = 620,122.60/x
  3. Step 3: Cross multiply
    1,518,979.60x = 2,278,469.40 × 620,122.60
  4. Step 4: Simplify right side
    1,518,979.60x = 1,412,930,368,348.44
  5. Step 5: Solve for x
    x = 1,412,930,368,348.44/1,518,979.60
  6. Step 6: Final answer
    x = 930,183.90

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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.