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Finding the Fourth Proportional to 624,472.72, 936,806.64 and 203,650.72

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Solution

The fourth proportional to 624,472.72, 936,806.64 and 203,650.72 is: 305,507.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,472.72 : 936,806.64 = 203,650.72 : x
  2. Step 2: Convert to fraction form
    624,472.72/936,806.64 = 203,650.72/x
  3. Step 3: Cross multiply
    624,472.72x = 936,806.64 × 203,650.72
  4. Step 4: Simplify right side
    624,472.72x = 190,781,346,736.78
  5. Step 5: Solve for x
    x = 190,781,346,736.78/624,472.72
  6. Step 6: Final answer
    x = 305,507.90

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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.