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Finding the Fourth Proportional to 449,268.30, 620,004.77 and 245,329.88

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Solution

The fourth proportional to 449,268.30, 620,004.77 and 245,329.88 is: 338,563.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,268.30 : 620,004.77 = 245,329.88 : x
  2. Step 2: Convert to fraction form
    449,268.30/620,004.77 = 245,329.88/x
  3. Step 3: Cross multiply
    449,268.30x = 620,004.77 × 245,329.88
  4. Step 4: Simplify right side
    449,268.30x = 152,105,691,496.85
  5. Step 5: Solve for x
    x = 152,105,691,496.85/449,268.30
  6. Step 6: Final answer
    x = 338,563.15

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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.