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Finding the Fourth Proportional to 706.62, 968.78 and 693.66

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Solution

The fourth proportional to 706.62, 968.78 and 693.66 is: 951.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    706.62 : 968.78 = 693.66 : x
  2. Step 2: Convert to fraction form
    706.62/968.78 = 693.66/x
  3. Step 3: Cross multiply
    706.62x = 968.78 × 693.66
  4. Step 4: Simplify right side
    706.62x = 672,000.47
  5. Step 5: Solve for x
    x = 672,000.47/706.62
  6. Step 6: Final answer
    x = 951.01

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.