Finding the Third Proportional to 315,474.75 and 678,471.19
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Solution
The third proportional to 315,474.75 and 678,471.19 is: 1,459,144.20
Step by Step Solution
- Step 1: Write the proportion equation
315,474.75 : 678,471.19 = 678,471.19 : x - Step 2: Convert to fraction form
315,474.75/678,471.19 = 678,471.19/x - Step 3: Cross multiply
315,474.75x = 678,471.19 × 678,471.19 - Step 4: Simplify right side
315,474.75x = 460,323,152,267.66 - Step 5: Solve for x
x = 460,323,152,267.66/315,474.75 - Step 6: Final answer
x = 1,459,144.20
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These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.