Finding the Fourth Proportional to 2,630,446.70, 3,942,718.74 and 1,721,378.23
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Solution
The fourth proportional to 2,630,446.70, 3,942,718.74 and 1,721,378.23 is: 2,580,135.99
Step by Step Solution
- Step 1: Write the proportion equation
2,630,446.70 : 3,942,718.74 = 1,721,378.23 : x - Step 2: Convert to fraction form
2,630,446.70/3,942,718.74 = 1,721,378.23/x - Step 3: Cross multiply
2,630,446.70x = 3,942,718.74 × 1,721,378.23 - Step 4: Simplify right side
2,630,446.70x = 6,786,910,206,049.03 - Step 5: Solve for x
x = 6,786,910,206,049.03/2,630,446.70 - Step 6: Final answer
x = 2,580,135.99
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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.