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Finding the Fourth Proportional to 706.22, 974.58 and 411.53

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Solution

The fourth proportional to 706.22, 974.58 and 411.53 is: 567.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    706.22 : 974.58 = 411.53 : x
  2. Step 2: Convert to fraction form
    706.22/974.58 = 411.53/x
  3. Step 3: Cross multiply
    706.22x = 974.58 × 411.53
  4. Step 4: Simplify right side
    706.22x = 401,070.29
  5. Step 5: Solve for x
    x = 401,070.29/706.22
  6. Step 6: Final answer
    x = 567.91

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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.