Finding the Fourth Proportional to 1,112,440, 1,668,711.84 and 324,472
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Solution
The fourth proportional to 1,112,440, 1,668,711.84 and 324,472 is: 486,723.12
Step by Step Solution
- Step 1: Write the proportion equation
1,112,440 : 1,668,711.84 = 324,472 : x - Step 2: Convert to fraction form
1,112,440/1,668,711.84 = 324,472/x - Step 3: Cross multiply
1,112,440x = 1,668,711.84 × 324,472 - Step 4: Simplify right side
1,112,440x = 541,450,268,148.48 - Step 5: Solve for x
x = 541,450,268,148.48/1,112,440 - Step 6: Final answer
x = 486,723.12
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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.