Finding the Third Proportional to 643,920 and 1,398,548
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Solution
The third proportional to 643,920 and 1,398,548 is: 3,037,545.83
Step by Step Solution
- Step 1: Write the proportion equation
643,920 : 1,398,548 = 1,398,548 : x - Step 2: Convert to fraction form
643,920/1,398,548 = 1,398,548/x - Step 3: Cross multiply
643,920x = 1,398,548 × 1,398,548 - Step 4: Simplify right side
643,920x = 1,955,936,508,304 - Step 5: Solve for x
x = 1,955,936,508,304/643,920 - Step 6: Final answer
x = 3,037,545.83
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These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.