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Finding the Fourth Proportional to 706.22, 974.94 and 470.56

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Solution

The fourth proportional to 706.22, 974.94 and 470.56 is: 649.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    706.22 : 974.94 = 470.56 : x
  2. Step 2: Convert to fraction form
    706.22/974.94 = 470.56/x
  3. Step 3: Cross multiply
    706.22x = 974.94 × 470.56
  4. Step 4: Simplify right side
    706.22x = 458,767.77
  5. Step 5: Solve for x
    x = 458,767.77/706.22
  6. Step 6: Final answer
    x = 649.61

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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.