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Finding the Fourth Proportional to 673.26, 929.45 and 453.37

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Solution

The fourth proportional to 673.26, 929.45 and 453.37 is: 625.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.26 : 929.45 = 453.37 : x
  2. Step 2: Convert to fraction form
    673.26/929.45 = 453.37/x
  3. Step 3: Cross multiply
    673.26x = 929.45 × 453.37
  4. Step 4: Simplify right side
    673.26x = 421,384.75
  5. Step 5: Solve for x
    x = 421,384.75/673.26
  6. Step 6: Final answer
    x = 625.89

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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.