Finding the Fourth Proportional to 879,104.70, 1,318,657.05 and 820,122.30
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Solution
The fourth proportional to 879,104.70, 1,318,657.05 and 820,122.30 is: 1,230,183.45
Step by Step Solution
- Step 1: Write the proportion equation
879,104.70 : 1,318,657.05 = 820,122.30 : x - Step 2: Convert to fraction form
879,104.70/1,318,657.05 = 820,122.30/x - Step 3: Cross multiply
879,104.70x = 1,318,657.05 × 820,122.30 - Step 4: Simplify right side
879,104.70x = 1,081,460,052,757.22 - Step 5: Solve for x
x = 1,081,460,052,757.22/879,104.70 - Step 6: Final answer
x = 1,230,183.45
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.