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Finding the Fourth Proportional to 606.99, 838.34 and 483.99

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Solution

The fourth proportional to 606.99, 838.34 and 483.99 is: 668.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.99 : 838.34 = 483.99 : x
  2. Step 2: Convert to fraction form
    606.99/838.34 = 483.99/x
  3. Step 3: Cross multiply
    606.99x = 838.34 × 483.99
  4. Step 4: Simplify right side
    606.99x = 405,745.76
  5. Step 5: Solve for x
    x = 405,745.76/606.99
  6. Step 6: Final answer
    x = 668.46

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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.