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Finding the Fourth Proportional to 605,559, 835,672.22 and 329,915.49

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Solution

The fourth proportional to 605,559, 835,672.22 and 329,915.49 is: 455,283.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,559 : 835,672.22 = 329,915.49 : x
  2. Step 2: Convert to fraction form
    605,559/835,672.22 = 329,915.49/x
  3. Step 3: Cross multiply
    605,559x = 835,672.22 × 329,915.49
  4. Step 4: Simplify right side
    605,559x = 275,701,209,940.69
  5. Step 5: Solve for x
    x = 275,701,209,940.69/605,559
  6. Step 6: Final answer
    x = 455,283.81

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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.