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Finding the Fourth Proportional to 454.51, 675.99 and 445.79

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Solution

The fourth proportional to 454.51, 675.99 and 445.79 is: 663.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.51 : 675.99 = 445.79 : x
  2. Step 2: Convert to fraction form
    454.51/675.99 = 445.79/x
  3. Step 3: Cross multiply
    454.51x = 675.99 × 445.79
  4. Step 4: Simplify right side
    454.51x = 301,351.27
  5. Step 5: Solve for x
    x = 301,351.27/454.51
  6. Step 6: Final answer
    x = 663.03

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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.