Home / 728,026.82-1,004,677.80-405,729.62

Finding the Fourth Proportional to 728,026.82, 1,004,677.80 and 405,729.62

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Solution

The fourth proportional to 728,026.82, 1,004,677.80 and 405,729.62 is: 559,907.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,026.82 : 1,004,677.80 = 405,729.62 : x
  2. Step 2: Convert to fraction form
    728,026.82/1,004,677.80 = 405,729.62/x
  3. Step 3: Cross multiply
    728,026.82x = 1,004,677.80 × 405,729.62
  4. Step 4: Simplify right side
    728,026.82x = 407,627,542,016.44
  5. Step 5: Solve for x
    x = 407,627,542,016.44/728,026.82
  6. Step 6: Final answer
    x = 559,907.31

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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.