Finding the Fourth Proportional to 680,818.68, 1,021,859.21 and 344,096.31
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Solution
The fourth proportional to 680,818.68, 1,021,859.21 and 344,096.31 is: 516,463.49
Step by Step Solution
- Step 1: Write the proportion equation
680,818.68 : 1,021,859.21 = 344,096.31 : x - Step 2: Convert to fraction form
680,818.68/1,021,859.21 = 344,096.31/x - Step 3: Cross multiply
680,818.68x = 1,021,859.21 × 344,096.31 - Step 4: Simplify right side
680,818.68x = 351,617,988,192.73 - Step 5: Solve for x
x = 351,617,988,192.73/680,818.68 - Step 6: Final answer
x = 516,463.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.