Finding the Fourth Proportional to 784,571.23, 1,079,310.67 and 687,337.21
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Solution
The fourth proportional to 784,571.23, 1,079,310.67 and 687,337.21 is: 945,548.80
Step by Step Solution
- Step 1: Write the proportion equation
784,571.23 : 1,079,310.67 = 687,337.21 : x - Step 2: Convert to fraction form
784,571.23/1,079,310.67 = 687,337.21/x - Step 3: Cross multiply
784,571.23x = 1,079,310.67 × 687,337.21 - Step 4: Simplify right side
784,571.23x = 741,850,384,641.03 - Step 5: Solve for x
x = 741,850,384,641.03/784,571.23 - Step 6: Final answer
x = 945,548.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.