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Finding the Fourth Proportional to 449,668.64, 620,535.26 and 245,715.20

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Solution

The fourth proportional to 449,668.64, 620,535.26 and 245,715.20 is: 339,082.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,668.64 : 620,535.26 = 245,715.20 : x
  2. Step 2: Convert to fraction form
    449,668.64/620,535.26 = 245,715.20/x
  3. Step 3: Cross multiply
    449,668.64x = 620,535.26 × 245,715.20
  4. Step 4: Simplify right side
    449,668.64x = 152,474,945,517.95
  5. Step 5: Solve for x
    x = 152,474,945,517.95/449,668.64
  6. Step 6: Final answer
    x = 339,082.90

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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.