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Finding the Fourth Proportional to 449,996.96, 620,983.76 and 266,245.04

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Solution

The fourth proportional to 449,996.96, 620,983.76 and 266,245.04 is: 367,411.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,996.96 : 620,983.76 = 266,245.04 : x
  2. Step 2: Convert to fraction form
    449,996.96/620,983.76 = 266,245.04/x
  3. Step 3: Cross multiply
    449,996.96x = 620,983.76 × 266,245.04
  4. Step 4: Simplify right side
    449,996.96x = 165,333,841,584.41
  5. Step 5: Solve for x
    x = 165,333,841,584.41/449,996.96
  6. Step 6: Final answer
    x = 367,411.02

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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.