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Finding the Fourth Proportional to 600.80, 829.49 and 490.54

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Solution

The fourth proportional to 600.80, 829.49 and 490.54 is: 677.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    600.80 : 829.49 = 490.54 : x
  2. Step 2: Convert to fraction form
    600.80/829.49 = 490.54/x
  3. Step 3: Cross multiply
    600.80x = 829.49 × 490.54
  4. Step 4: Simplify right side
    600.80x = 406,898.02
  5. Step 5: Solve for x
    x = 406,898.02/600.80
  6. Step 6: Final answer
    x = 677.26

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1.5x scale

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.