Home / 440,905.41-661,250.79-204,021.72

Finding the Fourth Proportional to 440,905.41, 661,250.79 and 204,021.72

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Solution

The fourth proportional to 440,905.41, 661,250.79 and 204,021.72 is: 305,982.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,905.41 : 661,250.79 = 204,021.72 : x
  2. Step 2: Convert to fraction form
    440,905.41/661,250.79 = 204,021.72/x
  3. Step 3: Cross multiply
    440,905.41x = 661,250.79 × 204,021.72
  4. Step 4: Simplify right side
    440,905.41x = 134,909,523,527.16
  5. Step 5: Solve for x
    x = 134,909,523,527.16/440,905.41
  6. Step 6: Final answer
    x = 305,982.92

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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.