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Finding the Fourth Proportional to 624,502.20, 936,522.90 and 203,791.80

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Solution

The fourth proportional to 624,502.20, 936,522.90 and 203,791.80 is: 305,612.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,502.20 : 936,522.90 = 203,791.80 : x
  2. Step 2: Convert to fraction form
    624,502.20/936,522.90 = 203,791.80/x
  3. Step 3: Cross multiply
    624,502.20x = 936,522.90 × 203,791.80
  4. Step 4: Simplify right side
    624,502.20x = 190,855,687,532.22
  5. Step 5: Solve for x
    x = 190,855,687,532.22/624,502.20
  6. Step 6: Final answer
    x = 305,612.51

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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.