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Finding the Fourth Proportional to 481,995, 664,876.08 and 300,619.80

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Solution

The fourth proportional to 481,995, 664,876.08 and 300,619.80 is: 414,682.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,995 : 664,876.08 = 300,619.80 : x
  2. Step 2: Convert to fraction form
    481,995/664,876.08 = 300,619.80/x
  3. Step 3: Cross multiply
    481,995x = 664,876.08 × 300,619.80
  4. Step 4: Simplify right side
    481,995x = 199,874,914,194.38
  5. Step 5: Solve for x
    x = 199,874,914,194.38/481,995
  6. Step 6: Final answer
    x = 414,682.55

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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.