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Finding the Fourth Proportional to 832.44, 1,148.33 and 635.61

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Solution

The fourth proportional to 832.44, 1,148.33 and 635.61 is: 876.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    832.44 : 1,148.33 = 635.61 : x
  2. Step 2: Convert to fraction form
    832.44/1,148.33 = 635.61/x
  3. Step 3: Cross multiply
    832.44x = 1,148.33 × 635.61
  4. Step 4: Simplify right side
    832.44x = 729,881.11
  5. Step 5: Solve for x
    x = 729,881.11/832.44
  6. Step 6: Final answer
    x = 876.80

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1.5x scale

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.