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Finding the Fourth Proportional to 706.19, 974.63 and 411.46

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Solution

The fourth proportional to 706.19, 974.63 and 411.46 is: 567.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    706.19 : 974.63 = 411.46 : x
  2. Step 2: Convert to fraction form
    706.19/974.63 = 411.46/x
  3. Step 3: Cross multiply
    706.19x = 974.63 × 411.46
  4. Step 4: Simplify right side
    706.19x = 401,021.26
  5. Step 5: Solve for x
    x = 401,021.26/706.19
  6. Step 6: Final answer
    x = 567.87

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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.