Finding the Fourth Proportional to 1,927,989.92, 2,889,143.12 and 1,073,885.80
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Solution
The fourth proportional to 1,927,989.92, 2,889,143.12 and 1,073,885.80 is: 1,609,245.85
Step by Step Solution
- Step 1: Write the proportion equation
1,927,989.92 : 2,889,143.12 = 1,073,885.80 : x - Step 2: Convert to fraction form
1,927,989.92/2,889,143.12 = 1,073,885.80/x - Step 3: Cross multiply
1,927,989.92x = 2,889,143.12 × 1,073,885.80 - Step 4: Simplify right side
1,927,989.92x = 3,102,609,770,735.70 - Step 5: Solve for x
x = 3,102,609,770,735.70/1,927,989.92 - Step 6: Final answer
x = 1,609,245.85
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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.