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Finding the Fourth Proportional to 673.29, 928.64 and 451.89

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Solution

The fourth proportional to 673.29, 928.64 and 451.89 is: 623.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.29 : 928.64 = 451.89 : x
  2. Step 2: Convert to fraction form
    673.29/928.64 = 451.89/x
  3. Step 3: Cross multiply
    673.29x = 928.64 × 451.89
  4. Step 4: Simplify right side
    673.29x = 419,644.26
  5. Step 5: Solve for x
    x = 419,644.26/673.29
  6. Step 6: Final answer
    x = 623.27

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1.5x scale

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.