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Finding the Fourth Proportional to 868.48, 1,304.26 and 832.61

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Solution

The fourth proportional to 868.48, 1,304.26 and 832.61 is: 1,250.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    868.48 : 1,304.26 = 832.61 : x
  2. Step 2: Convert to fraction form
    868.48/1,304.26 = 832.61/x
  3. Step 3: Cross multiply
    868.48x = 1,304.26 × 832.61
  4. Step 4: Simplify right side
    868.48x = 1,085,933.40
  5. Step 5: Solve for x
    x = 1,085,933.40/868.48
  6. Step 6: Final answer
    x = 1,250.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.