Finding the Fourth Proportional to 3,983,824.80, 5,974,959.60 and 1,324,432.80
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Solution
The fourth proportional to 3,983,824.80, 5,974,959.60 and 1,324,432.80 is: 1,986,390.68
Step by Step Solution
- Step 1: Write the proportion equation
3,983,824.80 : 5,974,959.60 = 1,324,432.80 : x - Step 2: Convert to fraction form
3,983,824.80/5,974,959.60 = 1,324,432.80/x - Step 3: Cross multiply
3,983,824.80x = 5,974,959.60 × 1,324,432.80 - Step 4: Simplify right side
3,983,824.80x = 7,913,432,472,914.88 - Step 5: Solve for x
x = 7,913,432,472,914.88/3,983,824.80 - Step 6: Final answer
x = 1,986,390.68
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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.