Home / 728,768.85-1,093,485.42-374,031.98

Finding the Fourth Proportional to 728,768.85, 1,093,485.42 and 374,031.98

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Solution

The fourth proportional to 728,768.85, 1,093,485.42 and 374,031.98 is: 561,218.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,768.85 : 1,093,485.42 = 374,031.98 : x
  2. Step 2: Convert to fraction form
    728,768.85/1,093,485.42 = 374,031.98/x
  3. Step 3: Cross multiply
    728,768.85x = 1,093,485.42 × 374,031.98
  4. Step 4: Simplify right side
    728,768.85x = 408,998,515,376.88
  5. Step 5: Solve for x
    x = 408,998,515,376.88/728,768.85
  6. Step 6: Final answer
    x = 561,218.44

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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.