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Finding the Fourth Proportional to 558.72, 837.12 and 443.52

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Solution

The fourth proportional to 558.72, 837.12 and 443.52 is: 664.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    558.72 : 837.12 = 443.52 : x
  2. Step 2: Convert to fraction form
    558.72/837.12 = 443.52/x
  3. Step 3: Cross multiply
    558.72x = 837.12 × 443.52
  4. Step 4: Simplify right side
    558.72x = 371,279.46
  5. Step 5: Solve for x
    x = 371,279.46/558.72
  6. Step 6: Final answer
    x = 664.52

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.