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Finding the Fourth Proportional to 693.55, 958.40 and 599.59

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Solution

The fourth proportional to 693.55, 958.40 and 599.59 is: 828.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    693.55 : 958.40 = 599.59 : x
  2. Step 2: Convert to fraction form
    693.55/958.40 = 599.59/x
  3. Step 3: Cross multiply
    693.55x = 958.40 × 599.59
  4. Step 4: Simplify right side
    693.55x = 574,647.06
  5. Step 5: Solve for x
    x = 574,647.06/693.55
  6. Step 6: Final answer
    x = 828.56

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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.