Finding the Fourth Proportional to 3,491,415.21, 4,817,431.09 and 2,040,830.02
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Solution
The fourth proportional to 3,491,415.21, 4,817,431.09 and 2,040,830.02 is: 2,815,923.46
Step by Step Solution
- Step 1: Write the proportion equation
3,491,415.21 : 4,817,431.09 = 2,040,830.02 : x - Step 2: Convert to fraction form
3,491,415.21/4,817,431.09 = 2,040,830.02/x - Step 3: Cross multiply
3,491,415.21x = 4,817,431.09 × 2,040,830.02 - Step 4: Simplify right side
3,491,415.21x = 9,831,557,987,753.32 - Step 5: Solve for x
x = 9,831,557,987,753.32/3,491,415.21 - Step 6: Final answer
x = 2,815,923.46
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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.