Home / 440,913.34-661,249.86-120,989.35

Finding the Fourth Proportional to 440,913.34, 661,249.86 and 120,989.35

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Solution

The fourth proportional to 440,913.34, 661,249.86 and 120,989.35 is: 181,451.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,913.34 : 661,249.86 = 120,989.35 : x
  2. Step 2: Convert to fraction form
    440,913.34/661,249.86 = 120,989.35/x
  3. Step 3: Cross multiply
    440,913.34x = 661,249.86 × 120,989.35
  4. Step 4: Simplify right side
    440,913.34x = 80,004,190,748.99
  5. Step 5: Solve for x
    x = 80,004,190,748.99/440,913.34
  6. Step 6: Final answer
    x = 181,451.06

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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.