Finding the Third Proportional to 422,139.75 and 918,630.75
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Solution
The third proportional to 422,139.75 and 918,630.75 is: 1,999,059.45
Step by Step Solution
- Step 1: Write the proportion equation
422,139.75 : 918,630.75 = 918,630.75 : x - Step 2: Convert to fraction form
422,139.75/918,630.75 = 918,630.75/x - Step 3: Cross multiply
422,139.75x = 918,630.75 × 918,630.75 - Step 4: Simplify right side
422,139.75x = 843,882,454,845.56 - Step 5: Solve for x
x = 843,882,454,845.56/422,139.75 - Step 6: Final answer
x = 1,999,059.45
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These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.