Home / 728,022.42-1,004,674.32-422,279.82

Finding the Fourth Proportional to 728,022.42, 1,004,674.32 and 422,279.82

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Solution

The fourth proportional to 728,022.42, 1,004,674.32 and 422,279.82 is: 582,748.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,022.42 : 1,004,674.32 = 422,279.82 : x
  2. Step 2: Convert to fraction form
    728,022.42/1,004,674.32 = 422,279.82/x
  3. Step 3: Cross multiply
    728,022.42x = 1,004,674.32 × 422,279.82
  4. Step 4: Simplify right side
    728,022.42x = 424,253,691,008.22
  5. Step 5: Solve for x
    x = 424,253,691,008.22/728,022.42
  6. Step 6: Final answer
    x = 582,748.11

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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.