Home / 2,810,769.20-3,878,860.66-1,521,608.64

Finding the Fourth Proportional to 2,810,769.20, 3,878,860.66 and 1,521,608.64

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Solution

The fourth proportional to 2,810,769.20, 3,878,860.66 and 1,521,608.64 is: 2,099,819.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810,769.20 : 3,878,860.66 = 1,521,608.64 : x
  2. Step 2: Convert to fraction form
    2,810,769.20/3,878,860.66 = 1,521,608.64/x
  3. Step 3: Cross multiply
    2,810,769.20x = 3,878,860.66 × 1,521,608.64
  4. Step 4: Simplify right side
    2,810,769.20x = 5,902,107,893,612.10
  5. Step 5: Solve for x
    x = 5,902,107,893,612.10/2,810,769.20
  6. Step 6: Final answer
    x = 2,099,819.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.