Home / 728,169.26-1,004,907.60-405,881.70

Finding the Fourth Proportional to 728,169.26, 1,004,907.60 and 405,881.70

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Solution

The fourth proportional to 728,169.26, 1,004,907.60 and 405,881.70 is: 560,135.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,169.26 : 1,004,907.60 = 405,881.70 : x
  2. Step 2: Convert to fraction form
    728,169.26/1,004,907.60 = 405,881.70/x
  3. Step 3: Cross multiply
    728,169.26x = 1,004,907.60 × 405,881.70
  4. Step 4: Simplify right side
    728,169.26x = 407,873,605,030.92
  5. Step 5: Solve for x
    x = 407,873,605,030.92/728,169.26
  6. Step 6: Final answer
    x = 560,135.71

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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.