Finding the Fourth Proportional to 1,079,236.20, 1,618,725.36 and 839,589.30
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Solution
The fourth proportional to 1,079,236.20, 1,618,725.36 and 839,589.30 is: 1,259,283.64
Step by Step Solution
- Step 1: Write the proportion equation
1,079,236.20 : 1,618,725.36 = 839,589.30 : x - Step 2: Convert to fraction form
1,079,236.20/1,618,725.36 = 839,589.30/x - Step 3: Cross multiply
1,079,236.20x = 1,618,725.36 × 839,589.30 - Step 4: Simplify right side
1,079,236.20x = 1,359,064,495,043.11 - Step 5: Solve for x
x = 1,359,064,495,043.11/1,079,236.20 - Step 6: Final answer
x = 1,259,283.64
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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.