Finding the Fourth Proportional to 1,899,912.84, 2,621,888.10 and 1,040,479.08
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Solution
The fourth proportional to 1,899,912.84, 2,621,888.10 and 1,040,479.08 is: 1,435,865.72
Step by Step Solution
- Step 1: Write the proportion equation
1,899,912.84 : 2,621,888.10 = 1,040,479.08 : x - Step 2: Convert to fraction form
1,899,912.84/2,621,888.10 = 1,040,479.08/x - Step 3: Cross multiply
1,899,912.84x = 2,621,888.10 × 1,040,479.08 - Step 4: Simplify right side
1,899,912.84x = 2,728,019,718,150.95 - Step 5: Solve for x
x = 2,728,019,718,150.95/1,899,912.84 - Step 6: Final answer
x = 1,435,865.72
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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.