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Finding the Fourth Proportional to 449,827.30, 620,778.27 and 245,891.80

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Solution

The fourth proportional to 449,827.30, 620,778.27 and 245,891.80 is: 339,339.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,827.30 : 620,778.27 = 245,891.80 : x
  2. Step 2: Convert to fraction form
    449,827.30/620,778.27 = 245,891.80/x
  3. Step 3: Cross multiply
    449,827.30x = 620,778.27 × 245,891.80
  4. Step 4: Simplify right side
    449,827.30x = 152,644,286,211.19
  5. Step 5: Solve for x
    x = 152,644,286,211.19/449,827.30
  6. Step 6: Final answer
    x = 339,339.76

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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.