Finding the Fourth Proportional to 1,354,942.58, 1,869,855.09 and 743,119.70
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Solution
The fourth proportional to 1,354,942.58, 1,869,855.09 and 743,119.70 is: 1,025,524.01
Step by Step Solution
- Step 1: Write the proportion equation
1,354,942.58 : 1,869,855.09 = 743,119.70 : x - Step 2: Convert to fraction form
1,354,942.58/1,869,855.09 = 743,119.70/x - Step 3: Cross multiply
1,354,942.58x = 1,869,855.09 × 743,119.70 - Step 4: Simplify right side
1,354,942.58x = 1,389,526,153,524.27 - Step 5: Solve for x
x = 1,389,526,153,524.27/1,354,942.58 - Step 6: Final answer
x = 1,025,524.01
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.