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Finding the Fourth Proportional to 706.03, 974.28 and 411.25

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Solution

The fourth proportional to 706.03, 974.28 and 411.25 is: 567.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    706.03 : 974.28 = 411.25 : x
  2. Step 2: Convert to fraction form
    706.03/974.28 = 411.25/x
  3. Step 3: Cross multiply
    706.03x = 974.28 × 411.25
  4. Step 4: Simplify right side
    706.03x = 400,672.65
  5. Step 5: Solve for x
    x = 400,672.65/706.03
  6. Step 6: Final answer
    x = 567.50

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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.