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Finding the Fourth Proportional to 662.22, 990.68 and 593.06

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Solution

The fourth proportional to 662.22, 990.68 and 593.06 is: 887.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.22 : 990.68 = 593.06 : x
  2. Step 2: Convert to fraction form
    662.22/990.68 = 593.06/x
  3. Step 3: Cross multiply
    662.22x = 990.68 × 593.06
  4. Step 4: Simplify right side
    662.22x = 587,524.76
  5. Step 5: Solve for x
    x = 587,524.76/662.22
  6. Step 6: Final answer
    x = 887.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.