Home / 449,815.18-620,744.42-245,867.44

Finding the Fourth Proportional to 449,815.18, 620,744.42 and 245,867.44

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Solution

The fourth proportional to 449,815.18, 620,744.42 and 245,867.44 is: 339,296.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,815.18 : 620,744.42 = 245,867.44 : x
  2. Step 2: Convert to fraction form
    449,815.18/620,744.42 = 245,867.44/x
  3. Step 3: Cross multiply
    449,815.18x = 620,744.42 × 245,867.44
  4. Step 4: Simplify right side
    449,815.18x = 152,620,841,439.69
  5. Step 5: Solve for x
    x = 152,620,841,439.69/449,815.18
  6. Step 6: Final answer
    x = 339,296.78

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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.