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Finding the Fourth Proportional to 706.07, 974.38 and 411.36

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Solution

The fourth proportional to 706.07, 974.38 and 411.36 is: 567.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    706.07 : 974.38 = 411.36 : x
  2. Step 2: Convert to fraction form
    706.07/974.38 = 411.36/x
  3. Step 3: Cross multiply
    706.07x = 974.38 × 411.36
  4. Step 4: Simplify right side
    706.07x = 400,820.96
  5. Step 5: Solve for x
    x = 400,820.96/706.07
  6. Step 6: Final answer
    x = 567.68

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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.