Finding the Third Proportional to 424,740.75 and 643,287.75
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Solution
The third proportional to 424,740.75 and 643,287.75 is: 974,286.38
Step by Step Solution
- Step 1: Write the proportion equation
424,740.75 : 643,287.75 = 643,287.75 : x - Step 2: Convert to fraction form
424,740.75/643,287.75 = 643,287.75/x - Step 3: Cross multiply
424,740.75x = 643,287.75 × 643,287.75 - Step 4: Simplify right side
424,740.75x = 413,819,129,300.06 - Step 5: Solve for x
x = 413,819,129,300.06/424,740.75 - Step 6: Final answer
x = 974,286.38
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.