Finding the Fourth Proportional to 4,207,446.75, 6,312,219.90 and 1,215,630.75
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Solution
The fourth proportional to 4,207,446.75, 6,312,219.90 and 1,215,630.75 is: 1,823,749.43
Step by Step Solution
- Step 1: Write the proportion equation
4,207,446.75 : 6,312,219.90 = 1,215,630.75 : x - Step 2: Convert to fraction form
4,207,446.75/6,312,219.90 = 1,215,630.75/x - Step 3: Cross multiply
4,207,446.75x = 6,312,219.90 × 1,215,630.75 - Step 4: Simplify right side
4,207,446.75x = 7,673,328,611,201.93 - Step 5: Solve for x
x = 7,673,328,611,201.93/4,207,446.75 - Step 6: Final answer
x = 1,823,749.43
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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.