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Finding the Fourth Proportional to 923.37, 1,384.63 and 630.96

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Solution

The fourth proportional to 923.37, 1,384.63 and 630.96 is: 946.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    923.37 : 1,384.63 = 630.96 : x
  2. Step 2: Convert to fraction form
    923.37/1,384.63 = 630.96/x
  3. Step 3: Cross multiply
    923.37x = 1,384.63 × 630.96
  4. Step 4: Simplify right side
    923.37x = 873,639.38
  5. Step 5: Solve for x
    x = 873,639.38/923.37
  6. Step 6: Final answer
    x = 946.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.