Finding the Fourth Proportional to 2,178,676.12, 3,007,206.09 and 1,453,522.05
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Solution
The fourth proportional to 2,178,676.12, 3,007,206.09 and 1,453,522.05 is: 2,006,282.76
Step by Step Solution
- Step 1: Write the proportion equation
2,178,676.12 : 3,007,206.09 = 1,453,522.05 : x - Step 2: Convert to fraction form
2,178,676.12/3,007,206.09 = 1,453,522.05/x - Step 3: Cross multiply
2,178,676.12x = 3,007,206.09 × 1,453,522.05 - Step 4: Simplify right side
2,178,676.12x = 4,371,040,345,673.25 - Step 5: Solve for x
x = 4,371,040,345,673.25/2,178,676.12 - Step 6: Final answer
x = 2,006,282.76
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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.