Home / 728,201.97-1,004,507.21-455,796.94

Finding the Fourth Proportional to 728,201.97, 1,004,507.21 and 455,796.94

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Solution

The fourth proportional to 728,201.97, 1,004,507.21 and 455,796.94 is: 628,742.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,201.97 : 1,004,507.21 = 455,796.94 : x
  2. Step 2: Convert to fraction form
    728,201.97/1,004,507.21 = 455,796.94/x
  3. Step 3: Cross multiply
    728,201.97x = 1,004,507.21 × 455,796.94
  4. Step 4: Simplify right side
    728,201.97x = 457,851,314,515.56
  5. Step 5: Solve for x
    x = 457,851,314,515.56/728,201.97
  6. Step 6: Final answer
    x = 628,742.21

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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.