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Finding the Fourth Proportional to 894.03, 1,233.65 and 495.65

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Solution

The fourth proportional to 894.03, 1,233.65 and 495.65 is: 683.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    894.03 : 1,233.65 = 495.65 : x
  2. Step 2: Convert to fraction form
    894.03/1,233.65 = 495.65/x
  3. Step 3: Cross multiply
    894.03x = 1,233.65 × 495.65
  4. Step 4: Simplify right side
    894.03x = 611,449.98
  5. Step 5: Solve for x
    x = 611,449.98/894.03
  6. Step 6: Final answer
    x = 683.93

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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.