Home / 440,921.19-661,310.98-120,998.34

Finding the Fourth Proportional to 440,921.19, 661,310.98 and 120,998.34

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Solution

The fourth proportional to 440,921.19, 661,310.98 and 120,998.34 is: 181,478.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,921.19 : 661,310.98 = 120,998.34 : x
  2. Step 2: Convert to fraction form
    440,921.19/661,310.98 = 120,998.34/x
  3. Step 3: Cross multiply
    440,921.19x = 661,310.98 × 120,998.34
  4. Step 4: Simplify right side
    440,921.19x = 80,017,530,803.77
  5. Step 5: Solve for x
    x = 80,017,530,803.77/440,921.19
  6. Step 6: Final answer
    x = 181,478.08

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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.