Finding the Fourth Proportional to 2,198,638.80, 3,296,038.20 and 851,720.40
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Solution
The fourth proportional to 2,198,638.80, 3,296,038.20 and 851,720.40 is: 1,276,836.82
Step by Step Solution
- Step 1: Write the proportion equation
2,198,638.80 : 3,296,038.20 = 851,720.40 : x - Step 2: Convert to fraction form
2,198,638.80/3,296,038.20 = 851,720.40/x - Step 3: Cross multiply
2,198,638.80x = 3,296,038.20 × 851,720.40 - Step 4: Simplify right side
2,198,638.80x = 2,807,302,974,119.28 - Step 5: Solve for x
x = 2,807,302,974,119.28/2,198,638.80 - Step 6: Final answer
x = 1,276,836.82
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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.