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Finding the Fourth Proportional to 449.46, 669.26 and 444.56

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Solution

The fourth proportional to 449.46, 669.26 and 444.56 is: 661.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    449.46 : 669.26 = 444.56 : x
  2. Step 2: Convert to fraction form
    449.46/669.26 = 444.56/x
  3. Step 3: Cross multiply
    449.46x = 669.26 × 444.56
  4. Step 4: Simplify right side
    449.46x = 297,526.23
  5. Step 5: Solve for x
    x = 297,526.23/449.46
  6. Step 6: Final answer
    x = 661.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.