Home / 728,004.26-1,004,649.25-422,261.66

Finding the Fourth Proportional to 728,004.26, 1,004,649.25 and 422,261.66

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Solution

The fourth proportional to 728,004.26, 1,004,649.25 and 422,261.66 is: 582,723.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,004.26 : 1,004,649.25 = 422,261.66 : x
  2. Step 2: Convert to fraction form
    728,004.26/1,004,649.25 = 422,261.66/x
  3. Step 3: Cross multiply
    728,004.26x = 1,004,649.25 × 422,261.66
  4. Step 4: Simplify right side
    728,004.26x = 424,224,860,022.76
  5. Step 5: Solve for x
    x = 424,224,860,022.76/728,004.26
  6. Step 6: Final answer
    x = 582,723.05

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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.