Finding the Third Proportional to 639,889 and 1,358,509
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Solution
The third proportional to 639,889 and 1,358,509 is: 2,884,166.95
Step by Step Solution
- Step 1: Write the proportion equation
639,889 : 1,358,509 = 1,358,509 : x - Step 2: Convert to fraction form
639,889/1,358,509 = 1,358,509/x - Step 3: Cross multiply
639,889x = 1,358,509 × 1,358,509 - Step 4: Simplify right side
639,889x = 1,845,546,703,081 - Step 5: Solve for x
x = 1,845,546,703,081/639,889 - Step 6: Final answer
x = 2,884,166.95
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Why These Related Problems?
These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.