Home / 721,185.88-1,081,840.38-188,706.46

Finding the Fourth Proportional to 721,185.88, 1,081,840.38 and 188,706.46

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Solution

The fourth proportional to 721,185.88, 1,081,840.38 and 188,706.46 is: 283,075.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,185.88 : 1,081,840.38 = 188,706.46 : x
  2. Step 2: Convert to fraction form
    721,185.88/1,081,840.38 = 188,706.46/x
  3. Step 3: Cross multiply
    721,185.88x = 1,081,840.38 × 188,706.46
  4. Step 4: Simplify right side
    721,185.88x = 204,150,268,394.86
  5. Step 5: Solve for x
    x = 204,150,268,394.86/721,185.88
  6. Step 6: Final answer
    x = 283,075.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.