Home / 2,168,809.20-3,253,213.80-821,015.79

Finding the Fourth Proportional to 2,168,809.20, 3,253,213.80 and 821,015.79

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Solution

The fourth proportional to 2,168,809.20, 3,253,213.80 and 821,015.79 is: 1,231,523.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,168,809.20 : 3,253,213.80 = 821,015.79 : x
  2. Step 2: Convert to fraction form
    2,168,809.20/3,253,213.80 = 821,015.79/x
  3. Step 3: Cross multiply
    2,168,809.20x = 3,253,213.80 × 821,015.79
  4. Step 4: Simplify right side
    2,168,809.20x = 2,670,939,898,045.90
  5. Step 5: Solve for x
    x = 2,670,939,898,045.90/2,168,809.20
  6. Step 6: Final answer
    x = 1,231,523.69

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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.