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Finding the Fourth Proportional to 703.99, 971.92 and 483.26

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Solution

The fourth proportional to 703.99, 971.92 and 483.26 is: 667.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    703.99 : 971.92 = 483.26 : x
  2. Step 2: Convert to fraction form
    703.99/971.92 = 483.26/x
  3. Step 3: Cross multiply
    703.99x = 971.92 × 483.26
  4. Step 4: Simplify right side
    703.99x = 469,687.64
  5. Step 5: Solve for x
    x = 469,687.64/703.99
  6. Step 6: Final answer
    x = 667.18

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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.