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Finding the Fourth Proportional to 449,611.10, 620,462.34 and 245,663.47

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Solution

The fourth proportional to 449,611.10, 620,462.34 and 245,663.47 is: 339,015.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,611.10 : 620,462.34 = 245,663.47 : x
  2. Step 2: Convert to fraction form
    449,611.10/620,462.34 = 245,663.47/x
  3. Step 3: Cross multiply
    449,611.10x = 620,462.34 × 245,663.47
  4. Step 4: Simplify right side
    449,611.10x = 152,424,932,224.30
  5. Step 5: Solve for x
    x = 152,424,932,224.30/449,611.10
  6. Step 6: Final answer
    x = 339,015.06

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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.