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Finding the Fourth Proportional to 473.87, 709.70 and 441.79

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Solution

The fourth proportional to 473.87, 709.70 and 441.79 is: 661.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.87 : 709.70 = 441.79 : x
  2. Step 2: Convert to fraction form
    473.87/709.70 = 441.79/x
  3. Step 3: Cross multiply
    473.87x = 709.70 × 441.79
  4. Step 4: Simplify right side
    473.87x = 313,534.38
  5. Step 5: Solve for x
    x = 313,534.38/473.87
  6. Step 6: Final answer
    x = 661.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.