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Finding the Fourth Proportional to 673.20, 944.40 and 673.20

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Solution

The fourth proportional to 673.20, 944.40 and 673.20 is: 944.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.20 : 944.40 = 673.20 : x
  2. Step 2: Convert to fraction form
    673.20/944.40 = 673.20/x
  3. Step 3: Cross multiply
    673.20x = 944.40 × 673.20
  4. Step 4: Simplify right side
    673.20x = 635,770.08
  5. Step 5: Solve for x
    x = 635,770.08/673.20
  6. Step 6: Final answer
    x = 944.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.