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Finding the Fourth Proportional to 623.96, 862.62 and 468.44

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Solution

The fourth proportional to 623.96, 862.62 and 468.44 is: 647.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.96 : 862.62 = 468.44 : x
  2. Step 2: Convert to fraction form
    623.96/862.62 = 468.44/x
  3. Step 3: Cross multiply
    623.96x = 862.62 × 468.44
  4. Step 4: Simplify right side
    623.96x = 404,085.71
  5. Step 5: Solve for x
    x = 404,085.71/623.96
  6. Step 6: Final answer
    x = 647.61

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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.