Finding the Fourth Proportional to 4,138,438.55, 6,207,920.22 and 1,298,662.79
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Solution
The fourth proportional to 4,138,438.55, 6,207,920.22 and 1,298,662.79 is: 1,948,076.53
Step by Step Solution
- Step 1: Write the proportion equation
4,138,438.55 : 6,207,920.22 = 1,298,662.79 : x - Step 2: Convert to fraction form
4,138,438.55/6,207,920.22 = 1,298,662.79/x - Step 3: Cross multiply
4,138,438.55x = 6,207,920.22 × 1,298,662.79 - Step 4: Simplify right side
4,138,438.55x = 8,061,994,993,002.61 - Step 5: Solve for x
x = 8,061,994,993,002.61/4,138,438.55 - Step 6: Final answer
x = 1,948,076.53
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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.