Home / 449,816.20-620,745.82-245,868.44

Finding the Fourth Proportional to 449,816.20, 620,745.82 and 245,868.44

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Solution

The fourth proportional to 449,816.20, 620,745.82 and 245,868.44 is: 339,298.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,816.20 : 620,745.82 = 245,868.44 : x
  2. Step 2: Convert to fraction form
    449,816.20/620,745.82 = 245,868.44/x
  3. Step 3: Cross multiply
    449,816.20x = 620,745.82 × 245,868.44
  4. Step 4: Simplify right side
    449,816.20x = 152,621,806,399.92
  5. Step 5: Solve for x
    x = 152,621,806,399.92/449,816.20
  6. Step 6: Final answer
    x = 339,298.15

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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.