Home / 443,721.85-612,840.94-298,275.01

Finding the Fourth Proportional to 443,721.85, 612,840.94 and 298,275.01

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Solution

The fourth proportional to 443,721.85, 612,840.94 and 298,275.01 is: 411,958.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,721.85 : 612,840.94 = 298,275.01 : x
  2. Step 2: Convert to fraction form
    443,721.85/612,840.94 = 298,275.01/x
  3. Step 3: Cross multiply
    443,721.85x = 612,840.94 × 298,275.01
  4. Step 4: Simplify right side
    443,721.85x = 182,795,135,229.12
  5. Step 5: Solve for x
    x = 182,795,135,229.12/443,721.85
  6. Step 6: Final answer
    x = 411,958.83

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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.