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Finding the Fourth Proportional to 474.24, 707.88 and 450.48

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Solution

The fourth proportional to 474.24, 707.88 and 450.48 is: 672.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    474.24 : 707.88 = 450.48 : x
  2. Step 2: Convert to fraction form
    474.24/707.88 = 450.48/x
  3. Step 3: Cross multiply
    474.24x = 707.88 × 450.48
  4. Step 4: Simplify right side
    474.24x = 318,885.78
  5. Step 5: Solve for x
    x = 318,885.78/474.24
  6. Step 6: Final answer
    x = 672.41

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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.