Home / 2,081,202.30-3,121,803.45-661,401.90

Finding the Fourth Proportional to 2,081,202.30, 3,121,803.45 and 661,401.90

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Solution

The fourth proportional to 2,081,202.30, 3,121,803.45 and 661,401.90 is: 992,102.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,081,202.30 : 3,121,803.45 = 661,401.90 : x
  2. Step 2: Convert to fraction form
    2,081,202.30/3,121,803.45 = 661,401.90/x
  3. Step 3: Cross multiply
    2,081,202.30x = 3,121,803.45 × 661,401.90
  4. Step 4: Simplify right side
    2,081,202.30x = 2,064,766,733,256.56
  5. Step 5: Solve for x
    x = 2,064,766,733,256.56/2,081,202.30
  6. Step 6: Final answer
    x = 992,102.85

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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.