Finding the Fourth Proportional to 3,993,201.12, 5,987,404.20 and 1,831,518.40
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Solution
The fourth proportional to 3,993,201.12, 5,987,404.20 and 1,831,518.40 is: 2,746,177.97
Step by Step Solution
- Step 1: Write the proportion equation
3,993,201.12 : 5,987,404.20 = 1,831,518.40 : x - Step 2: Convert to fraction form
3,993,201.12/5,987,404.20 = 1,831,518.40/x - Step 3: Cross multiply
3,993,201.12x = 5,987,404.20 × 1,831,518.40 - Step 4: Simplify right side
3,993,201.12x = 10,966,040,960,537.28 - Step 5: Solve for x
x = 10,966,040,960,537.28/3,993,201.12 - Step 6: Final answer
x = 2,746,177.97
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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.