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Finding the Fourth Proportional to 587.72, 885.73 and 551.24

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Solution

The fourth proportional to 587.72, 885.73 and 551.24 is: 830.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.72 : 885.73 = 551.24 : x
  2. Step 2: Convert to fraction form
    587.72/885.73 = 551.24/x
  3. Step 3: Cross multiply
    587.72x = 885.73 × 551.24
  4. Step 4: Simplify right side
    587.72x = 488,249.81
  5. Step 5: Solve for x
    x = 488,249.81/587.72
  6. Step 6: Final answer
    x = 830.75

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.