Finding the Third Proportional to 391,569.75 and 623,067.75
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Solution
The third proportional to 391,569.75 and 623,067.75 is: 991,428.53
Step by Step Solution
- Step 1: Write the proportion equation
391,569.75 : 623,067.75 = 623,067.75 : x - Step 2: Convert to fraction form
391,569.75/623,067.75 = 623,067.75/x - Step 3: Cross multiply
391,569.75x = 623,067.75 × 623,067.75 - Step 4: Simplify right side
391,569.75x = 388,213,421,090.06 - Step 5: Solve for x
x = 388,213,421,090.06/391,569.75 - Step 6: Final answer
x = 991,428.53
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These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.