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Finding the Fourth Proportional to 604.77, 910.64 and 443.58

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Solution

The fourth proportional to 604.77, 910.64 and 443.58 is: 667.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.77 : 910.64 = 443.58 : x
  2. Step 2: Convert to fraction form
    604.77/910.64 = 443.58/x
  3. Step 3: Cross multiply
    604.77x = 910.64 × 443.58
  4. Step 4: Simplify right side
    604.77x = 403,939.47
  5. Step 5: Solve for x
    x = 403,939.47/604.77
  6. Step 6: Final answer
    x = 667.92

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.