Home / 2,921,780.20-4,380,596.70-1,325,108.20

Finding the Fourth Proportional to 2,921,780.20, 4,380,596.70 and 1,325,108.20

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Solution

The fourth proportional to 2,921,780.20, 4,380,596.70 and 1,325,108.20 is: 1,986,721.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921,780.20 : 4,380,596.70 = 1,325,108.20 : x
  2. Step 2: Convert to fraction form
    2,921,780.20/4,380,596.70 = 1,325,108.20/x
  3. Step 3: Cross multiply
    2,921,780.20x = 4,380,596.70 × 1,325,108.20
  4. Step 4: Simplify right side
    2,921,780.20x = 5,804,764,608,062.94
  5. Step 5: Solve for x
    x = 5,804,764,608,062.94/2,921,780.20
  6. Step 6: Final answer
    x = 1,986,721.86

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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.