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Finding the Fourth Proportional to 609.66, 914.94 and 404.16

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Solution

The fourth proportional to 609.66, 914.94 and 404.16 is: 606.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.66 : 914.94 = 404.16 : x
  2. Step 2: Convert to fraction form
    609.66/914.94 = 404.16/x
  3. Step 3: Cross multiply
    609.66x = 914.94 × 404.16
  4. Step 4: Simplify right side
    609.66x = 369,782.15
  5. Step 5: Solve for x
    x = 369,782.15/609.66
  6. Step 6: Final answer
    x = 606.54

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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.