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Finding the Fourth Proportional to 623.30, 928.79 and 582.29

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Solution

The fourth proportional to 623.30, 928.79 and 582.29 is: 867.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.30 : 928.79 = 582.29 : x
  2. Step 2: Convert to fraction form
    623.30/928.79 = 582.29/x
  3. Step 3: Cross multiply
    623.30x = 928.79 × 582.29
  4. Step 4: Simplify right side
    623.30x = 540,824.88
  5. Step 5: Solve for x
    x = 540,824.88/623.30
  6. Step 6: Final answer
    x = 867.69

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.