Finding the Fourth Proportional to 1,770,142.68, 2,443,183.76 and 1,125,436.95
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Solution
The fourth proportional to 1,770,142.68, 2,443,183.76 and 1,125,436.95 is: 1,553,348.95
Step by Step Solution
- Step 1: Write the proportion equation
1,770,142.68 : 2,443,183.76 = 1,125,436.95 : x - Step 2: Convert to fraction form
1,770,142.68/2,443,183.76 = 1,125,436.95/x - Step 3: Cross multiply
1,770,142.68x = 2,443,183.76 × 1,125,436.95 - Step 4: Simplify right side
1,770,142.68x = 2,749,649,273,516.75 - Step 5: Solve for x
x = 2,749,649,273,516.75/1,770,142.68 - Step 6: Final answer
x = 1,553,348.95
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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.