Finding the Fourth Proportional to 3,579,438.84, 4,939,626.30 and 1,969,806.84
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Solution
The fourth proportional to 3,579,438.84, 4,939,626.30 and 1,969,806.84 is: 2,718,333.82
Step by Step Solution
- Step 1: Write the proportion equation
3,579,438.84 : 4,939,626.30 = 1,969,806.84 : x - Step 2: Convert to fraction form
3,579,438.84/4,939,626.30 = 1,969,806.84/x - Step 3: Cross multiply
3,579,438.84x = 4,939,626.30 × 1,969,806.84 - Step 4: Simplify right side
3,579,438.84x = 9,730,109,672,783.89 - Step 5: Solve for x
x = 9,730,109,672,783.89/3,579,438.84 - Step 6: Final answer
x = 2,718,333.82
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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.