Finding the Fourth Proportional to 1,660,339.40, 2,491,286.70 and 862,521.80
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Solution
The fourth proportional to 1,660,339.40, 2,491,286.70 and 862,521.80 is: 1,294,186.65
Step by Step Solution
- Step 1: Write the proportion equation
1,660,339.40 : 2,491,286.70 = 862,521.80 : x - Step 2: Convert to fraction form
1,660,339.40/2,491,286.70 = 862,521.80/x - Step 3: Cross multiply
1,660,339.40x = 2,491,286.70 × 862,521.80 - Step 4: Simplify right side
1,660,339.40x = 2,148,789,088,800.06 - Step 5: Solve for x
x = 2,148,789,088,800.06/1,660,339.40 - Step 6: Final answer
x = 1,294,186.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.