Finding the Fourth Proportional to 1,218,990.70, 1,826,804.49 and 919,141.75
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Solution
The fourth proportional to 1,218,990.70, 1,826,804.49 and 919,141.75 is: 1,377,444.70
Step by Step Solution
- Step 1: Write the proportion equation
1,218,990.70 : 1,826,804.49 = 919,141.75 : x - Step 2: Convert to fraction form
1,218,990.70/1,826,804.49 = 919,141.75/x - Step 3: Cross multiply
1,218,990.70x = 1,826,804.49 × 919,141.75 - Step 4: Simplify right side
1,218,990.70x = 1,679,092,275,846.46 - Step 5: Solve for x
x = 1,679,092,275,846.46/1,218,990.70 - Step 6: Final answer
x = 1,377,444.70
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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.