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Finding the Fourth Proportional to 449,611.60, 620,463.03 and 245,663.97

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Solution

The fourth proportional to 449,611.60, 620,463.03 and 245,663.97 is: 339,015.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,611.60 : 620,463.03 = 245,663.97 : x
  2. Step 2: Convert to fraction form
    449,611.60/620,463.03 = 245,663.97/x
  3. Step 3: Cross multiply
    449,611.60x = 620,463.03 × 245,663.97
  4. Step 4: Simplify right side
    449,611.60x = 152,425,411,188.03
  5. Step 5: Solve for x
    x = 152,425,411,188.03/449,611.60
  6. Step 6: Final answer
    x = 339,015.74

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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.