Finding the Third Proportional to 639,966 and 1,374,903
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Solution
The third proportional to 639,966 and 1,374,903 is: 2,953,841.70
Step by Step Solution
- Step 1: Write the proportion equation
639,966 : 1,374,903 = 1,374,903 : x - Step 2: Convert to fraction form
639,966/1,374,903 = 1,374,903/x - Step 3: Cross multiply
639,966x = 1,374,903 × 1,374,903 - Step 4: Simplify right side
639,966x = 1,890,358,259,409 - Step 5: Solve for x
x = 1,890,358,259,409/639,966 - Step 6: Final answer
x = 2,953,841.70
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Why These Related Problems?
These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.