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Finding the Fourth Proportional to 703.72, 969.78 and 496.36

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Solution

The fourth proportional to 703.72, 969.78 and 496.36 is: 684.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    703.72 : 969.78 = 496.36 : x
  2. Step 2: Convert to fraction form
    703.72/969.78 = 496.36/x
  3. Step 3: Cross multiply
    703.72x = 969.78 × 496.36
  4. Step 4: Simplify right side
    703.72x = 481,360.00
  5. Step 5: Solve for x
    x = 481,360.00/703.72
  6. Step 6: Final answer
    x = 684.02

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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.