Finding the Fourth Proportional to 4,138,438.05, 6,207,919.47 and 1,298,662.29
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Solution
The fourth proportional to 4,138,438.05, 6,207,919.47 and 1,298,662.29 is: 1,948,075.78
Step by Step Solution
- Step 1: Write the proportion equation
4,138,438.05 : 6,207,919.47 = 1,298,662.29 : x - Step 2: Convert to fraction form
4,138,438.05/6,207,919.47 = 1,298,662.29/x - Step 3: Cross multiply
4,138,438.05x = 6,207,919.47 × 1,298,662.29 - Step 4: Simplify right side
4,138,438.05x = 8,061,990,915,045.79 - Step 5: Solve for x
x = 8,061,990,915,045.79/4,138,438.05 - Step 6: Final answer
x = 1,948,075.78
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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.