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Finding the Fourth Proportional to 923.91, 1,274.98 and 504.27

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Solution

The fourth proportional to 923.91, 1,274.98 and 504.27 is: 695.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    923.91 : 1,274.98 = 504.27 : x
  2. Step 2: Convert to fraction form
    923.91/1,274.98 = 504.27/x
  3. Step 3: Cross multiply
    923.91x = 1,274.98 × 504.27
  4. Step 4: Simplify right side
    923.91x = 642,932.90
  5. Step 5: Solve for x
    x = 642,932.90/923.91
  6. Step 6: Final answer
    x = 695.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.