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Finding the Fourth Proportional to 825.60, 1,233.69 and 593.40

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Solution

The fourth proportional to 825.60, 1,233.69 and 593.40 is: 886.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    825.60 : 1,233.69 = 593.40 : x
  2. Step 2: Convert to fraction form
    825.60/1,233.69 = 593.40/x
  3. Step 3: Cross multiply
    825.60x = 1,233.69 × 593.40
  4. Step 4: Simplify right side
    825.60x = 732,071.65
  5. Step 5: Solve for x
    x = 732,071.65/825.60
  6. Step 6: Final answer
    x = 886.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.