Finding the Third Proportional to 889,689.50 and 1,378,775
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Solution
The third proportional to 889,689.50 and 1,378,775 is: 2,136,723.54
Step by Step Solution
- Step 1: Write the proportion equation
889,689.50 : 1,378,775 = 1,378,775 : x - Step 2: Convert to fraction form
889,689.50/1,378,775 = 1,378,775/x - Step 3: Cross multiply
889,689.50x = 1,378,775 × 1,378,775 - Step 4: Simplify right side
889,689.50x = 1,901,020,500,625 - Step 5: Solve for x
x = 1,901,020,500,625/889,689.50 - Step 6: Final answer
x = 2,136,723.54
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Why These Related Problems?
These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.