Finding the Fourth Proportional to 1,759,960.14, 2,639,517.21 and 812,420.70
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Solution
The fourth proportional to 1,759,960.14, 2,639,517.21 and 812,420.70 is: 1,218,435.79
Step by Step Solution
- Step 1: Write the proportion equation
1,759,960.14 : 2,639,517.21 = 812,420.70 : x - Step 2: Convert to fraction form
1,759,960.14/2,639,517.21 = 812,420.70/x - Step 3: Cross multiply
1,759,960.14x = 2,639,517.21 × 812,420.70 - Step 4: Simplify right side
1,759,960.14x = 2,144,398,419,410.25 - Step 5: Solve for x
x = 2,144,398,419,410.25/1,759,960.14 - Step 6: Final answer
x = 1,218,435.79
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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.