Home / 728,113.56-1,004,801.37-405,844.09

Finding the Fourth Proportional to 728,113.56, 1,004,801.37 and 405,844.09

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Solution

The fourth proportional to 728,113.56, 1,004,801.37 and 405,844.09 is: 560,067.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,113.56 : 1,004,801.37 = 405,844.09 : x
  2. Step 2: Convert to fraction form
    728,113.56/1,004,801.37 = 405,844.09/x
  3. Step 3: Cross multiply
    728,113.56x = 1,004,801.37 × 405,844.09
  4. Step 4: Simplify right side
    728,113.56x = 407,792,695,887.36
  5. Step 5: Solve for x
    x = 407,792,695,887.36/728,113.56
  6. Step 6: Final answer
    x = 560,067.44

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1.5x scale

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.