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Finding the Fourth Proportional to 631.92, 941.56 and 603.96

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Solution

The fourth proportional to 631.92, 941.56 and 603.96 is: 899.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    631.92 : 941.56 = 603.96 : x
  2. Step 2: Convert to fraction form
    631.92/941.56 = 603.96/x
  3. Step 3: Cross multiply
    631.92x = 941.56 × 603.96
  4. Step 4: Simplify right side
    631.92x = 568,664.58
  5. Step 5: Solve for x
    x = 568,664.58/631.92
  6. Step 6: Final answer
    x = 899.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.