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Finding the Fourth Proportional to 703.15, 969.86 and 482.12

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Solution

The fourth proportional to 703.15, 969.86 and 482.12 is: 664.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    703.15 : 969.86 = 482.12 : x
  2. Step 2: Convert to fraction form
    703.15/969.86 = 482.12/x
  3. Step 3: Cross multiply
    703.15x = 969.86 × 482.12
  4. Step 4: Simplify right side
    703.15x = 467,585.26
  5. Step 5: Solve for x
    x = 467,585.26/703.15
  6. Step 6: Final answer
    x = 664.99

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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.