Finding the Third Proportional to 638,980 and 1,363,400
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Solution
The third proportional to 638,980 and 1,363,400 is: 2,909,104.45
Step by Step Solution
- Step 1: Write the proportion equation
638,980 : 1,363,400 = 1,363,400 : x - Step 2: Convert to fraction form
638,980/1,363,400 = 1,363,400/x - Step 3: Cross multiply
638,980x = 1,363,400 × 1,363,400 - Step 4: Simplify right side
638,980x = 1,858,859,560,000 - Step 5: Solve for x
x = 1,858,859,560,000/638,980 - Step 6: Final answer
x = 2,909,104.45
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These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.