Home / 3,117,820.20-4,673,231.10-1,320,397.80

Finding the Fourth Proportional to 3,117,820.20, 4,673,231.10 and 1,320,397.80

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Solution

The fourth proportional to 3,117,820.20, 4,673,231.10 and 1,320,397.80 is: 1,979,114.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117,820.20 : 4,673,231.10 = 1,320,397.80 : x
  2. Step 2: Convert to fraction form
    3,117,820.20/4,673,231.10 = 1,320,397.80/x
  3. Step 3: Cross multiply
    3,117,820.20x = 4,673,231.10 × 1,320,397.80
  4. Step 4: Simplify right side
    3,117,820.20x = 6,170,524,063,331.58
  5. Step 5: Solve for x
    x = 6,170,524,063,331.58/3,117,820.20
  6. Step 6: Final answer
    x = 1,979,114.79

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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.