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Finding the Fourth Proportional to 606.03, 835.44 and 428.45

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Solution

The fourth proportional to 606.03, 835.44 and 428.45 is: 590.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.03 : 835.44 = 428.45 : x
  2. Step 2: Convert to fraction form
    606.03/835.44 = 428.45/x
  3. Step 3: Cross multiply
    606.03x = 835.44 × 428.45
  4. Step 4: Simplify right side
    606.03x = 357,940.09
  5. Step 5: Solve for x
    x = 357,940.09/606.03
  6. Step 6: Final answer
    x = 590.63

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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.