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Finding the Fourth Proportional to 449,703.87, 620,592.96 and 245,757.92

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Solution

The fourth proportional to 449,703.87, 620,592.96 and 245,757.92 is: 339,146.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,703.87 : 620,592.96 = 245,757.92 : x
  2. Step 2: Convert to fraction form
    449,703.87/620,592.96 = 245,757.92/x
  3. Step 3: Cross multiply
    449,703.87x = 620,592.96 × 245,757.92
  4. Step 4: Simplify right side
    449,703.87x = 152,515,631,452.48
  5. Step 5: Solve for x
    x = 152,515,631,452.48/449,703.87
  6. Step 6: Final answer
    x = 339,146.81

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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.