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Finding the Fourth Proportional to 623.44, 930.96 and 587.44

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Solution

The fourth proportional to 623.44, 930.96 and 587.44 is: 877.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.44 : 930.96 = 587.44 : x
  2. Step 2: Convert to fraction form
    623.44/930.96 = 587.44/x
  3. Step 3: Cross multiply
    623.44x = 930.96 × 587.44
  4. Step 4: Simplify right side
    623.44x = 546,883.14
  5. Step 5: Solve for x
    x = 546,883.14/623.44
  6. Step 6: Final answer
    x = 877.20

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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.