Finding the Third Proportional to 643,344.19 and 857,694.66
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Solution
The third proportional to 643,344.19 and 857,694.66 is: 1,143,462.76
Step by Step Solution
- Step 1: Write the proportion equation
643,344.19 : 857,694.66 = 857,694.66 : x - Step 2: Convert to fraction form
643,344.19/857,694.66 = 857,694.66/x - Step 3: Cross multiply
643,344.19x = 857,694.66 × 857,694.66 - Step 4: Simplify right side
643,344.19x = 735,640,123,359.81 - Step 5: Solve for x
x = 735,640,123,359.81/643,344.19 - Step 6: Final answer
x = 1,143,462.76
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Why These Related Problems?
These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.