Finding the Fourth Proportional to 3,706,873.88, 5,115,205.28 and 2,256,408.09
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Solution
The fourth proportional to 3,706,873.88, 5,115,205.28 and 2,256,408.09 is: 3,113,672.32
Step by Step Solution
- Step 1: Write the proportion equation
3,706,873.88 : 5,115,205.28 = 2,256,408.09 : x - Step 2: Convert to fraction form
3,706,873.88/5,115,205.28 = 2,256,408.09/x - Step 3: Cross multiply
3,706,873.88x = 5,115,205.28 × 2,256,408.09 - Step 4: Simplify right side
3,706,873.88x = 11,541,990,581,443.73 - Step 5: Solve for x
x = 11,541,990,581,443.73/3,706,873.88 - Step 6: Final answer
x = 3,113,672.32
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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.