Finding the Fourth Proportional to 2,511,905.40, 3,766,691.70 and 1,091,230.20
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Solution
The fourth proportional to 2,511,905.40, 3,766,691.70 and 1,091,230.20 is: 1,636,338.59
Step by Step Solution
- Step 1: Write the proportion equation
2,511,905.40 : 3,766,691.70 = 1,091,230.20 : x - Step 2: Convert to fraction form
2,511,905.40/3,766,691.70 = 1,091,230.20/x - Step 3: Cross multiply
2,511,905.40x = 3,766,691.70 × 1,091,230.20 - Step 4: Simplify right side
2,511,905.40x = 4,110,327,737,129.34 - Step 5: Solve for x
x = 4,110,327,737,129.34/2,511,905.40 - Step 6: Final answer
x = 1,636,338.59
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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.