Home / 728,807.44-1,093,211.34-391,383.94

Finding the Fourth Proportional to 728,807.44, 1,093,211.34 and 391,383.94

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Solution

The fourth proportional to 728,807.44, 1,093,211.34 and 391,383.94 is: 587,076.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,807.44 : 1,093,211.34 = 391,383.94 : x
  2. Step 2: Convert to fraction form
    728,807.44/1,093,211.34 = 391,383.94/x
  3. Step 3: Cross multiply
    728,807.44x = 1,093,211.34 × 391,383.94
  4. Step 4: Simplify right side
    728,807.44x = 427,865,361,501.88
  5. Step 5: Solve for x
    x = 427,865,361,501.88/728,807.44
  6. Step 6: Final answer
    x = 587,076.01

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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.