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Finding the Fourth Proportional to 600.09, 828.21 and 434.85

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Solution

The fourth proportional to 600.09, 828.21 and 434.85 is: 600.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    600.09 : 828.21 = 434.85 : x
  2. Step 2: Convert to fraction form
    600.09/828.21 = 434.85/x
  3. Step 3: Cross multiply
    600.09x = 828.21 × 434.85
  4. Step 4: Simplify right side
    600.09x = 360,147.12
  5. Step 5: Solve for x
    x = 360,147.12/600.09
  6. Step 6: Final answer
    x = 600.16

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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.