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Finding the Fourth Proportional to 432,630.67, 649,353.11 and 219,551.56

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Solution

The fourth proportional to 432,630.67, 649,353.11 and 219,551.56 is: 329,533.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,630.67 : 649,353.11 = 219,551.56 : x
  2. Step 2: Convert to fraction form
    432,630.67/649,353.11 = 219,551.56/x
  3. Step 3: Cross multiply
    432,630.67x = 649,353.11 × 219,551.56
  4. Step 4: Simplify right side
    432,630.67x = 142,566,489,222.82
  5. Step 5: Solve for x
    x = 142,566,489,222.82/432,630.67
  6. Step 6: Final answer
    x = 329,533.94

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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.