Finding the Third Proportional to 389,139.75 and 497,229.75
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Solution
The third proportional to 389,139.75 and 497,229.75 is: 635,343.53
Step by Step Solution
- Step 1: Write the proportion equation
389,139.75 : 497,229.75 = 497,229.75 : x - Step 2: Convert to fraction form
389,139.75/497,229.75 = 497,229.75/x - Step 3: Cross multiply
389,139.75x = 497,229.75 × 497,229.75 - Step 4: Simplify right side
389,139.75x = 247,237,424,285.06 - Step 5: Solve for x
x = 247,237,424,285.06/389,139.75 - Step 6: Final answer
x = 635,343.53
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These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.