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Finding the Fourth Proportional to 449,675.68, 620,554.07 and 245,726.61

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Solution

The fourth proportional to 449,675.68, 620,554.07 and 245,726.61 is: 339,103.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,675.68 : 620,554.07 = 245,726.61 : x
  2. Step 2: Convert to fraction form
    449,675.68/620,554.07 = 245,726.61/x
  3. Step 3: Cross multiply
    449,675.68x = 620,554.07 × 245,726.61
  4. Step 4: Simplify right side
    449,675.68x = 152,486,647,942.80
  5. Step 5: Solve for x
    x = 152,486,647,942.80/449,675.68
  6. Step 6: Final answer
    x = 339,103.61

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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.