Finding the Third Proportional to 438,639.19 and 642,750.75
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Solution
The third proportional to 438,639.19 and 642,750.75 is: 941,841.35
Step by Step Solution
- Step 1: Write the proportion equation
438,639.19 : 642,750.75 = 642,750.75 : x - Step 2: Convert to fraction form
438,639.19/642,750.75 = 642,750.75/x - Step 3: Cross multiply
438,639.19x = 642,750.75 × 642,750.75 - Step 4: Simplify right side
438,639.19x = 413,128,526,625.56 - Step 5: Solve for x
x = 413,128,526,625.56/438,639.19 - Step 6: Final answer
x = 941,841.35
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These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.