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Finding the Fourth Proportional to 624,649.70, 936,744.15 and 203,939.30

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Solution

The fourth proportional to 624,649.70, 936,744.15 and 203,939.30 is: 305,833.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,649.70 : 936,744.15 = 203,939.30 : x
  2. Step 2: Convert to fraction form
    624,649.70/936,744.15 = 203,939.30/x
  3. Step 3: Cross multiply
    624,649.70x = 936,744.15 × 203,939.30
  4. Step 4: Simplify right side
    624,649.70x = 191,038,946,230.10
  5. Step 5: Solve for x
    x = 191,038,946,230.10/624,649.70
  6. Step 6: Final answer
    x = 305,833.73

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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.