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Finding the Fourth Proportional to 586.64, 808.25 and 481.75

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Solution

The fourth proportional to 586.64, 808.25 and 481.75 is: 663.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    586.64 : 808.25 = 481.75 : x
  2. Step 2: Convert to fraction form
    586.64/808.25 = 481.75/x
  3. Step 3: Cross multiply
    586.64x = 808.25 × 481.75
  4. Step 4: Simplify right side
    586.64x = 389,370.01
  5. Step 5: Solve for x
    x = 389,370.01/586.64
  6. Step 6: Final answer
    x = 663.73

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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.