Finding the Fourth Proportional to 1,222,257.26, 1,686,702.30 and 678,397.79
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Solution
The fourth proportional to 1,222,257.26, 1,686,702.30 and 678,397.79 is: 936,181.89
Step by Step Solution
- Step 1: Write the proportion equation
1,222,257.26 : 1,686,702.30 = 678,397.79 : x - Step 2: Convert to fraction form
1,222,257.26/1,686,702.30 = 678,397.79/x - Step 3: Cross multiply
1,222,257.26x = 1,686,702.30 × 678,397.79 - Step 4: Simplify right side
1,222,257.26x = 1,144,255,104,274.41 - Step 5: Solve for x
x = 1,144,255,104,274.41/1,222,257.26 - Step 6: Final answer
x = 936,181.89
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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.