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Finding the Fourth Proportional to 609.08, 913.23 and 284.13

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Solution

The fourth proportional to 609.08, 913.23 and 284.13 is: 426.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.08 : 913.23 = 284.13 : x
  2. Step 2: Convert to fraction form
    609.08/913.23 = 284.13/x
  3. Step 3: Cross multiply
    609.08x = 913.23 × 284.13
  4. Step 4: Simplify right side
    609.08x = 259,476.04
  5. Step 5: Solve for x
    x = 259,476.04/609.08
  6. Step 6: Final answer
    x = 426.02

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1.5x scale

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.