Finding the Fourth Proportional to 646,286.42, 969,872.45 and 225,562.29
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Solution
The fourth proportional to 646,286.42, 969,872.45 and 225,562.29 is: 338,497.99
Step by Step Solution
- Step 1: Write the proportion equation
646,286.42 : 969,872.45 = 225,562.29 : x - Step 2: Convert to fraction form
646,286.42/969,872.45 = 225,562.29/x - Step 3: Cross multiply
646,286.42x = 969,872.45 × 225,562.29 - Step 4: Simplify right side
646,286.42x = 218,766,649,702.10 - Step 5: Solve for x
x = 218,766,649,702.10/646,286.42 - Step 6: Final answer
x = 338,497.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.