Finding the Third Proportional to 389,718 and 617,868
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Solution
The third proportional to 389,718 and 617,868 is: 979,582.33
Step by Step Solution
- Step 1: Write the proportion equation
389,718 : 617,868 = 617,868 : x - Step 2: Convert to fraction form
389,718/617,868 = 617,868/x - Step 3: Cross multiply
389,718x = 617,868 × 617,868 - Step 4: Simplify right side
389,718x = 381,760,865,424 - Step 5: Solve for x
x = 381,760,865,424/389,718 - Step 6: Final answer
x = 979,582.33
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These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.