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Finding the Fourth Proportional to 672.96, 929.22 and 452.10

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Solution

The fourth proportional to 672.96, 929.22 and 452.10 is: 624.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    672.96 : 929.22 = 452.10 : x
  2. Step 2: Convert to fraction form
    672.96/929.22 = 452.10/x
  3. Step 3: Cross multiply
    672.96x = 929.22 × 452.10
  4. Step 4: Simplify right side
    672.96x = 420,100.36
  5. Step 5: Solve for x
    x = 420,100.36/672.96
  6. Step 6: Final answer
    x = 624.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.