Home / 1,333,520.37-1,840,243.74-721,659.60

Finding the Fourth Proportional to 1,333,520.37, 1,840,243.74 and 721,659.60

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Solution

The fourth proportional to 1,333,520.37, 1,840,243.74 and 721,659.60 is: 995,882.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,520.37 : 1,840,243.74 = 721,659.60 : x
  2. Step 2: Convert to fraction form
    1,333,520.37/1,840,243.74 = 721,659.60/x
  3. Step 3: Cross multiply
    1,333,520.37x = 1,840,243.74 × 721,659.60
  4. Step 4: Simplify right side
    1,333,520.37x = 1,328,029,561,310.90
  5. Step 5: Solve for x
    x = 1,328,029,561,310.90/1,333,520.37
  6. Step 6: Final answer
    x = 995,882.47

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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.