Finding the Fourth Proportional to 2,698,989.88, 3,722,193.74 and 2,239,376.90
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Solution
The fourth proportional to 2,698,989.88, 3,722,193.74 and 2,239,376.90 is: 3,088,338.62
Step by Step Solution
- Step 1: Write the proportion equation
2,698,989.88 : 3,722,193.74 = 2,239,376.90 : x - Step 2: Convert to fraction form
2,698,989.88/3,722,193.74 = 2,239,376.90/x - Step 3: Cross multiply
2,698,989.88x = 3,722,193.74 × 2,239,376.90 - Step 4: Simplify right side
2,698,989.88x = 8,335,394,678,680.61 - Step 5: Solve for x
x = 8,335,394,678,680.61/2,698,989.88 - Step 6: Final answer
x = 3,088,338.62
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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.