Finding the Fourth Proportional to 3,674,390.70, 5,512,177.74 and 1,278,916.14
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Solution
The fourth proportional to 3,674,390.70, 5,512,177.74 and 1,278,916.14 is: 1,918,580.15
Step by Step Solution
- Step 1: Write the proportion equation
3,674,390.70 : 5,512,177.74 = 1,278,916.14 : x - Step 2: Convert to fraction form
3,674,390.70/5,512,177.74 = 1,278,916.14/x - Step 3: Cross multiply
3,674,390.70x = 5,512,177.74 × 1,278,916.14 - Step 4: Simplify right side
3,674,390.70x = 7,049,613,078,234.72 - Step 5: Solve for x
x = 7,049,613,078,234.72/3,674,390.70 - Step 6: Final answer
x = 1,918,580.15
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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.