Home / 770,947.91-1,063,891.22-422,087.57

Finding the Fourth Proportional to 770,947.91, 1,063,891.22 and 422,087.57

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Solution

The fourth proportional to 770,947.91, 1,063,891.22 and 422,087.57 is: 582,471.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,947.91 : 1,063,891.22 = 422,087.57 : x
  2. Step 2: Convert to fraction form
    770,947.91/1,063,891.22 = 422,087.57/x
  3. Step 3: Cross multiply
    770,947.91x = 1,063,891.22 × 422,087.57
  4. Step 4: Simplify right side
    770,947.91x = 449,055,252,364.24
  5. Step 5: Solve for x
    x = 449,055,252,364.24/770,947.91
  6. Step 6: Final answer
    x = 582,471.59

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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.