Finding the Fourth Proportional to 1,660,335.40, 2,491,280.70 and 862,517.80
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Solution
The fourth proportional to 1,660,335.40, 2,491,280.70 and 862,517.80 is: 1,294,180.65
Step by Step Solution
- Step 1: Write the proportion equation
1,660,335.40 : 2,491,280.70 = 862,517.80 : x - Step 2: Convert to fraction form
1,660,335.40/2,491,280.70 = 862,517.80/x - Step 3: Cross multiply
1,660,335.40x = 2,491,280.70 × 862,517.80 - Step 4: Simplify right side
1,660,335.40x = 2,148,773,948,546.46 - Step 5: Solve for x
x = 2,148,773,948,546.46/1,660,335.40 - Step 6: Final answer
x = 1,294,180.65
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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.