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Finding the Fourth Proportional to 703.41, 970.49 and 408.62

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Solution

The fourth proportional to 703.41, 970.49 and 408.62 is: 563.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    703.41 : 970.49 = 408.62 : x
  2. Step 2: Convert to fraction form
    703.41/970.49 = 408.62/x
  3. Step 3: Cross multiply
    703.41x = 970.49 × 408.62
  4. Step 4: Simplify right side
    703.41x = 396,561.62
  5. Step 5: Solve for x
    x = 396,561.62/703.41
  6. Step 6: Final answer
    x = 563.77

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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.