Finding the Fourth Proportional to 1,821,391.70, 2,732,220.15 and 699,460.70
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Solution
The fourth proportional to 1,821,391.70, 2,732,220.15 and 699,460.70 is: 1,049,241.97
Step by Step Solution
- Step 1: Write the proportion equation
1,821,391.70 : 2,732,220.15 = 699,460.70 : x - Step 2: Convert to fraction form
1,821,391.70/2,732,220.15 = 699,460.70/x - Step 3: Cross multiply
1,821,391.70x = 2,732,220.15 × 699,460.70 - Step 4: Simplify right side
1,821,391.70x = 1,911,080,618,673.10 - Step 5: Solve for x
x = 1,911,080,618,673.10/1,821,391.70 - Step 6: Final answer
x = 1,049,241.97
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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.