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Finding the Fourth Proportional to 586.44, 883.31 and 551.61

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Solution

The fourth proportional to 586.44, 883.31 and 551.61 is: 830.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    586.44 : 883.31 = 551.61 : x
  2. Step 2: Convert to fraction form
    586.44/883.31 = 551.61/x
  3. Step 3: Cross multiply
    586.44x = 883.31 × 551.61
  4. Step 4: Simplify right side
    586.44x = 487,239.87
  5. Step 5: Solve for x
    x = 487,239.87/586.44
  6. Step 6: Final answer
    x = 830.84

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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.