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Finding the Fourth Proportional to 440,920.19, 661,309.49 and 120,997.34

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Solution

The fourth proportional to 440,920.19, 661,309.49 and 120,997.34 is: 181,476.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,920.19 : 661,309.49 = 120,997.34 : x
  2. Step 2: Convert to fraction form
    440,920.19/661,309.49 = 120,997.34/x
  3. Step 3: Cross multiply
    440,920.19x = 661,309.49 × 120,997.34
  4. Step 4: Simplify right side
    440,920.19x = 80,016,690,255.04
  5. Step 5: Solve for x
    x = 80,016,690,255.04/440,920.19
  6. Step 6: Final answer
    x = 181,476.58

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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.