Home / 730,422.89-1,008,629.92-455,250.36

Finding the Fourth Proportional to 730,422.89, 1,008,629.92 and 455,250.36

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Solution

The fourth proportional to 730,422.89, 1,008,629.92 and 455,250.36 is: 628,648.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,422.89 : 1,008,629.92 = 455,250.36 : x
  2. Step 2: Convert to fraction form
    730,422.89/1,008,629.92 = 455,250.36/x
  3. Step 3: Cross multiply
    730,422.89x = 1,008,629.92 × 455,250.36
  4. Step 4: Simplify right side
    730,422.89x = 459,179,131,910.52
  5. Step 5: Solve for x
    x = 459,179,131,910.52/730,422.89
  6. Step 6: Final answer
    x = 628,648.34

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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.