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Finding the Fourth Proportional to 449,202.60, 672,729.71 and 259,086.62

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Solution

The fourth proportional to 449,202.60, 672,729.71 and 259,086.62 is: 388,010.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,202.60 : 672,729.71 = 259,086.62 : x
  2. Step 2: Convert to fraction form
    449,202.60/672,729.71 = 259,086.62/x
  3. Step 3: Cross multiply
    449,202.60x = 672,729.71 × 259,086.62
  4. Step 4: Simplify right side
    449,202.60x = 174,295,262,078.40
  5. Step 5: Solve for x
    x = 174,295,262,078.40/449,202.60
  6. Step 6: Final answer
    x = 388,010.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.