Finding the Third Proportional to 321,657.75 and 687,489.75
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Solution
The third proportional to 321,657.75 and 687,489.75 is: 1,469,394.59
Step by Step Solution
- Step 1: Write the proportion equation
321,657.75 : 687,489.75 = 687,489.75 : x - Step 2: Convert to fraction form
321,657.75/687,489.75 = 687,489.75/x - Step 3: Cross multiply
321,657.75x = 687,489.75 × 687,489.75 - Step 4: Simplify right side
321,657.75x = 472,642,156,355.06 - Step 5: Solve for x
x = 472,642,156,355.06/321,657.75 - Step 6: Final answer
x = 1,469,394.59
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These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.