Home / 494,736.30-739,890.09-415,020.15

Finding the Fourth Proportional to 494,736.30, 739,890.09 and 415,020.15

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Solution

The fourth proportional to 494,736.30, 739,890.09 and 415,020.15 is: 620,672.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,736.30 : 739,890.09 = 415,020.15 : x
  2. Step 2: Convert to fraction form
    494,736.30/739,890.09 = 415,020.15/x
  3. Step 3: Cross multiply
    494,736.30x = 739,890.09 × 415,020.15
  4. Step 4: Simplify right side
    494,736.30x = 307,069,296,135.31
  5. Step 5: Solve for x
    x = 307,069,296,135.31/494,736.30
  6. Step 6: Final answer
    x = 620,672.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.