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Finding the Fourth Proportional to 885.23, 1,327.05 and 445.91

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Solution

The fourth proportional to 885.23, 1,327.05 and 445.91 is: 668.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    885.23 : 1,327.05 = 445.91 : x
  2. Step 2: Convert to fraction form
    885.23/1,327.05 = 445.91/x
  3. Step 3: Cross multiply
    885.23x = 1,327.05 × 445.91
  4. Step 4: Simplify right side
    885.23x = 591,738.23
  5. Step 5: Solve for x
    x = 591,738.23/885.23
  6. Step 6: Final answer
    x = 668.46

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Double scale
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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.