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Finding the Fourth Proportional to 448.99, 669.75 and 441.56

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Solution

The fourth proportional to 448.99, 669.75 and 441.56 is: 658.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    448.99 : 669.75 = 441.56 : x
  2. Step 2: Convert to fraction form
    448.99/669.75 = 441.56/x
  3. Step 3: Cross multiply
    448.99x = 669.75 × 441.56
  4. Step 4: Simplify right side
    448.99x = 295,734.81
  5. Step 5: Solve for x
    x = 295,734.81/448.99
  6. Step 6: Final answer
    x = 658.67

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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.