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Finding the Fourth Proportional to 449,945, 620,937.06 and 248,753.96

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Solution

The fourth proportional to 449,945, 620,937.06 and 248,753.96 is: 343,287.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,945 : 620,937.06 = 248,753.96 : x
  2. Step 2: Convert to fraction form
    449,945/620,937.06 = 248,753.96/x
  3. Step 3: Cross multiply
    449,945x = 620,937.06 × 248,753.96
  4. Step 4: Simplify right side
    449,945x = 154,460,552,585.76
  5. Step 5: Solve for x
    x = 154,460,552,585.76/449,945
  6. Step 6: Final answer
    x = 343,287.63

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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.