Finding the Third Proportional to 749,115 and 1,638,135
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Solution
The third proportional to 749,115 and 1,638,135 is: 3,582,208.71
Step by Step Solution
- Step 1: Write the proportion equation
749,115 : 1,638,135 = 1,638,135 : x - Step 2: Convert to fraction form
749,115/1,638,135 = 1,638,135/x - Step 3: Cross multiply
749,115x = 1,638,135 × 1,638,135 - Step 4: Simplify right side
749,115x = 2,683,486,278,225 - Step 5: Solve for x
x = 2,683,486,278,225/749,115 - Step 6: Final answer
x = 3,582,208.71
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Why These Related Problems?
These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.