Finding the Fourth Proportional to 2,670,913.05, 3,685,928.63 and 1,638,990.97
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Solution
The fourth proportional to 2,670,913.05, 3,685,928.63 and 1,638,990.97 is: 2,261,849.65
Step by Step Solution
- Step 1: Write the proportion equation
2,670,913.05 : 3,685,928.63 = 1,638,990.97 : x - Step 2: Convert to fraction form
2,670,913.05/3,685,928.63 = 1,638,990.97/x - Step 3: Cross multiply
2,670,913.05x = 3,685,928.63 × 1,638,990.97 - Step 4: Simplify right side
2,670,913.05x = 6,041,203,740,634.47 - Step 5: Solve for x
x = 6,041,203,740,634.47/2,670,913.05 - Step 6: Final answer
x = 2,261,849.65
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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.