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Finding the Fourth Proportional to 923.89, 1,274.93 and 504.24

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Solution

The fourth proportional to 923.89, 1,274.93 and 504.24 is: 695.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    923.89 : 1,274.93 = 504.24 : x
  2. Step 2: Convert to fraction form
    923.89/1,274.93 = 504.24/x
  3. Step 3: Cross multiply
    923.89x = 1,274.93 × 504.24
  4. Step 4: Simplify right side
    923.89x = 642,870.70
  5. Step 5: Solve for x
    x = 642,870.70/923.89
  6. Step 6: Final answer
    x = 695.83

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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.