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Finding the Fourth Proportional to 449,967, 620,954.46 and 248,763

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Solution

The fourth proportional to 449,967, 620,954.46 and 248,763 is: 343,292.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,967 : 620,954.46 = 248,763 : x
  2. Step 2: Convert to fraction form
    449,967/620,954.46 = 248,763/x
  3. Step 3: Cross multiply
    449,967x = 620,954.46 × 248,763
  4. Step 4: Simplify right side
    449,967x = 154,470,494,332.98
  5. Step 5: Solve for x
    x = 154,470,494,332.98/449,967
  6. Step 6: Final answer
    x = 343,292.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.