Finding the Fourth Proportional to 1,147,917.31, 1,586,310.75 and 860,939.17
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Solution
The fourth proportional to 1,147,917.31, 1,586,310.75 and 860,939.17 is: 1,189,734.70
Step by Step Solution
- Step 1: Write the proportion equation
1,147,917.31 : 1,586,310.75 = 860,939.17 : x - Step 2: Convert to fraction form
1,147,917.31/1,586,310.75 = 860,939.17/x - Step 3: Cross multiply
1,147,917.31x = 1,586,310.75 × 860,939.17 - Step 4: Simplify right side
1,147,917.31x = 1,365,717,060,467.08 - Step 5: Solve for x
x = 1,365,717,060,467.08/1,147,917.31 - Step 6: Final answer
x = 1,189,734.70
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.