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Finding the Fourth Proportional to 700.67, 966.51 and 513.83

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Solution

The fourth proportional to 700.67, 966.51 and 513.83 is: 708.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.67 : 966.51 = 513.83 : x
  2. Step 2: Convert to fraction form
    700.67/966.51 = 513.83/x
  3. Step 3: Cross multiply
    700.67x = 966.51 × 513.83
  4. Step 4: Simplify right side
    700.67x = 496,617.00
  5. Step 5: Solve for x
    x = 496,617.00/700.67
  6. Step 6: Final answer
    x = 708.78

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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.