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Finding the Fourth Proportional to 673.22, 928.23 and 579.80

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Solution

The fourth proportional to 673.22, 928.23 and 579.80 is: 799.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.22 : 928.23 = 579.80 : x
  2. Step 2: Convert to fraction form
    673.22/928.23 = 579.80/x
  3. Step 3: Cross multiply
    673.22x = 928.23 × 579.80
  4. Step 4: Simplify right side
    673.22x = 538,190.18
  5. Step 5: Solve for x
    x = 538,190.18/673.22
  6. Step 6: Final answer
    x = 799.43

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Double scale
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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.