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Finding the Fourth Proportional to 673.25, 928.53 and 463.12

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Solution

The fourth proportional to 673.25, 928.53 and 463.12 is: 638.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.25 : 928.53 = 463.12 : x
  2. Step 2: Convert to fraction form
    673.25/928.53 = 463.12/x
  3. Step 3: Cross multiply
    673.25x = 928.53 × 463.12
  4. Step 4: Simplify right side
    673.25x = 430,018.49
  5. Step 5: Solve for x
    x = 430,018.49/673.25
  6. Step 6: Final answer
    x = 638.73

Related Problems

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Half scale
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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.