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Finding the Fourth Proportional to 585.33, 813.38 and 579.39

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Solution

The fourth proportional to 585.33, 813.38 and 579.39 is: 805.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    585.33 : 813.38 = 579.39 : x
  2. Step 2: Convert to fraction form
    585.33/813.38 = 579.39/x
  3. Step 3: Cross multiply
    585.33x = 813.38 × 579.39
  4. Step 4: Simplify right side
    585.33x = 471,261.34
  5. Step 5: Solve for x
    x = 471,261.34/585.33
  6. Step 6: Final answer
    x = 805.12

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.