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Finding the Fourth Proportional to 443,999.37, 612,791.49 and 330,034.80

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Solution

The fourth proportional to 443,999.37, 612,791.49 and 330,034.80 is: 455,501.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,999.37 : 612,791.49 = 330,034.80 : x
  2. Step 2: Convert to fraction form
    443,999.37/612,791.49 = 330,034.80/x
  3. Step 3: Cross multiply
    443,999.37x = 612,791.49 × 330,034.80
  4. Step 4: Simplify right side
    443,999.37x = 202,242,516,843.85
  5. Step 5: Solve for x
    x = 202,242,516,843.85/443,999.37
  6. Step 6: Final answer
    x = 455,501.81

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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.