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Finding the Fourth Proportional to 628.86, 936.92 and 597.88

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Solution

The fourth proportional to 628.86, 936.92 and 597.88 is: 890.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    628.86 : 936.92 = 597.88 : x
  2. Step 2: Convert to fraction form
    628.86/936.92 = 597.88/x
  3. Step 3: Cross multiply
    628.86x = 936.92 × 597.88
  4. Step 4: Simplify right side
    628.86x = 560,160.40
  5. Step 5: Solve for x
    x = 560,160.40/628.86
  6. Step 6: Final answer
    x = 890.76

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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.