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Finding the Fourth Proportional to 636.06, 876.23 and 495.93

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Solution

The fourth proportional to 636.06, 876.23 and 495.93 is: 683.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.06 : 876.23 = 495.93 : x
  2. Step 2: Convert to fraction form
    636.06/876.23 = 495.93/x
  3. Step 3: Cross multiply
    636.06x = 876.23 × 495.93
  4. Step 4: Simplify right side
    636.06x = 434,541.88
  5. Step 5: Solve for x
    x = 434,541.88/636.06
  6. Step 6: Final answer
    x = 683.18

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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.