Finding the Fourth Proportional to 3,989,723.80, 5,984,585.70 and 3,044,939.80
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Solution
The fourth proportional to 3,989,723.80, 5,984,585.70 and 3,044,939.80 is: 4,567,409.70
Step by Step Solution
- Step 1: Write the proportion equation
3,989,723.80 : 5,984,585.70 = 3,044,939.80 : x - Step 2: Convert to fraction form
3,989,723.80/5,984,585.70 = 3,044,939.80/x - Step 3: Cross multiply
3,989,723.80x = 5,984,585.70 × 3,044,939.80 - Step 4: Simplify right side
3,989,723.80x = 18,222,703,184,440.86 - Step 5: Solve for x
x = 18,222,703,184,440.86/3,989,723.80 - Step 6: Final answer
x = 4,567,409.70
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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.