Finding the Fourth Proportional to 2,351,355.70, 3,245,171.02 and 1,384,575.95
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Solution
The fourth proportional to 2,351,355.70, 3,245,171.02 and 1,384,575.95 is: 1,910,891.55
Step by Step Solution
- Step 1: Write the proportion equation
2,351,355.70 : 3,245,171.02 = 1,384,575.95 : x - Step 2: Convert to fraction form
2,351,355.70/3,245,171.02 = 1,384,575.95/x - Step 3: Cross multiply
2,351,355.70x = 3,245,171.02 × 1,384,575.95 - Step 4: Simplify right side
2,351,355.70x = 4,493,185,735,164.55 - Step 5: Solve for x
x = 4,493,185,735,164.55/2,351,355.70 - Step 6: Final answer
x = 1,910,891.55
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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.