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Finding the Fourth Proportional to 703.28, 969 and 670.52

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Solution

The fourth proportional to 703.28, 969 and 670.52 is: 923.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    703.28 : 969 = 670.52 : x
  2. Step 2: Convert to fraction form
    703.28/969 = 670.52/x
  3. Step 3: Cross multiply
    703.28x = 969 × 670.52
  4. Step 4: Simplify right side
    703.28x = 649,733.88
  5. Step 5: Solve for x
    x = 649,733.88/703.28
  6. Step 6: Final answer
    x = 923.86

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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.