Home / 770,949.21-1,063,922.52-422,083.80

Finding the Fourth Proportional to 770,949.21, 1,063,922.52 and 422,083.80

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Solution

The fourth proportional to 770,949.21, 1,063,922.52 and 422,083.80 is: 582,482.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,949.21 : 1,063,922.52 = 422,083.80 : x
  2. Step 2: Convert to fraction form
    770,949.21/1,063,922.52 = 422,083.80/x
  3. Step 3: Cross multiply
    770,949.21x = 1,063,922.52 × 422,083.80
  4. Step 4: Simplify right side
    770,949.21x = 449,064,460,147.18
  5. Step 5: Solve for x
    x = 449,064,460,147.18/770,949.21
  6. Step 6: Final answer
    x = 582,482.55

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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.