Finding the Fourth Proportional to 2,080,609.40, 3,121,691.70 and 819,316.28
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Solution
The fourth proportional to 2,080,609.40, 3,121,691.70 and 819,316.28 is: 1,229,280.63
Step by Step Solution
- Step 1: Write the proportion equation
2,080,609.40 : 3,121,691.70 = 819,316.28 : x - Step 2: Convert to fraction form
2,080,609.40/3,121,691.70 = 819,316.28/x - Step 3: Cross multiply
2,080,609.40x = 3,121,691.70 × 819,316.28 - Step 4: Simplify right side
2,080,609.40x = 2,557,652,830,950.88 - Step 5: Solve for x
x = 2,557,652,830,950.88/2,080,609.40 - Step 6: Final answer
x = 1,229,280.63
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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.