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Finding the Fourth Proportional to 703.92, 971.49 and 441.94

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Solution

The fourth proportional to 703.92, 971.49 and 441.94 is: 609.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    703.92 : 971.49 = 441.94 : x
  2. Step 2: Convert to fraction form
    703.92/971.49 = 441.94/x
  3. Step 3: Cross multiply
    703.92x = 971.49 × 441.94
  4. Step 4: Simplify right side
    703.92x = 429,337.86
  5. Step 5: Solve for x
    x = 429,337.86/703.92
  6. Step 6: Final answer
    x = 609.92

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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.