Finding the Fourth Proportional to 2,271,916.21, 3,135,193.91 and 1,253,320.69
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Solution
The fourth proportional to 2,271,916.21, 3,135,193.91 and 1,253,320.69 is: 1,729,554.71
Step by Step Solution
- Step 1: Write the proportion equation
2,271,916.21 : 3,135,193.91 = 1,253,320.69 : x - Step 2: Convert to fraction form
2,271,916.21/3,135,193.91 = 1,253,320.69/x - Step 3: Cross multiply
2,271,916.21x = 3,135,193.91 × 1,253,320.69 - Step 4: Simplify right side
2,271,916.21x = 3,929,403,380,460.41 - Step 5: Solve for x
x = 3,929,403,380,460.41/2,271,916.21 - Step 6: Final answer
x = 1,729,554.71
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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.