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Finding the Fourth Proportional to 449,676.69, 620,555.45 and 245,727.61

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Solution

The fourth proportional to 449,676.69, 620,555.45 and 245,727.61 is: 339,104.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,676.69 : 620,555.45 = 245,727.61 : x
  2. Step 2: Convert to fraction form
    449,676.69/620,555.45 = 245,727.61/x
  3. Step 3: Cross multiply
    449,676.69x = 620,555.45 × 245,727.61
  4. Step 4: Simplify right side
    449,676.69x = 152,487,607,600.98
  5. Step 5: Solve for x
    x = 152,487,607,600.98/449,676.69
  6. Step 6: Final answer
    x = 339,104.99

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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.