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Finding the Fourth Proportional to 579.99, 869.71 and 336.58

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Solution

The fourth proportional to 579.99, 869.71 and 336.58 is: 504.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.99 : 869.71 = 336.58 : x
  2. Step 2: Convert to fraction form
    579.99/869.71 = 336.58/x
  3. Step 3: Cross multiply
    579.99x = 869.71 × 336.58
  4. Step 4: Simplify right side
    579.99x = 292,725.31
  5. Step 5: Solve for x
    x = 292,725.31/579.99
  6. Step 6: Final answer
    x = 504.71

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Double scale
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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.