Finding the Third Proportional to 421,534.13 and 642,805.88
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Solution
The third proportional to 421,534.13 and 642,805.88 is: 980,227.62
Step by Step Solution
- Step 1: Write the proportion equation
421,534.13 : 642,805.88 = 642,805.88 : x - Step 2: Convert to fraction form
421,534.13/642,805.88 = 642,805.88/x - Step 3: Cross multiply
421,534.13x = 642,805.88 × 642,805.88 - Step 4: Simplify right side
421,534.13x = 413,199,392,934.52 - Step 5: Solve for x
x = 413,199,392,934.52/421,534.13 - Step 6: Final answer
x = 980,227.62
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These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.