Finding the Fourth Proportional to 876,441.19, 1,311,202.73 and 663,821.59
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Solution
The fourth proportional to 876,441.19, 1,311,202.73 and 663,821.59 is: 993,112.48
Step by Step Solution
- Step 1: Write the proportion equation
876,441.19 : 1,311,202.73 = 663,821.59 : x - Step 2: Convert to fraction form
876,441.19/1,311,202.73 = 663,821.59/x - Step 3: Cross multiply
876,441.19x = 1,311,202.73 × 663,821.59 - Step 4: Simplify right side
876,441.19x = 870,404,683,489.17 - Step 5: Solve for x
x = 870,404,683,489.17/876,441.19 - Step 6: Final answer
x = 993,112.48
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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.