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Finding the Fourth Proportional to 652.99, 979.48 and 306.46

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Solution

The fourth proportional to 652.99, 979.48 and 306.46 is: 459.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    652.99 : 979.48 = 306.46 : x
  2. Step 2: Convert to fraction form
    652.99/979.48 = 306.46/x
  3. Step 3: Cross multiply
    652.99x = 979.48 × 306.46
  4. Step 4: Simplify right side
    652.99x = 300,171.44
  5. Step 5: Solve for x
    x = 300,171.44/652.99
  6. Step 6: Final answer
    x = 459.69

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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.