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Finding the Fourth Proportional to 609.03, 840.21 and 452.04

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Solution

The fourth proportional to 609.03, 840.21 and 452.04 is: 623.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.03 : 840.21 = 452.04 : x
  2. Step 2: Convert to fraction form
    609.03/840.21 = 452.04/x
  3. Step 3: Cross multiply
    609.03x = 840.21 × 452.04
  4. Step 4: Simplify right side
    609.03x = 379,808.53
  5. Step 5: Solve for x
    x = 379,808.53/609.03
  6. Step 6: Final answer
    x = 623.63

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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.