Finding the Fourth Proportional to 1,105,664.40, 1,660,246.20 and 839,725.20
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Solution
The fourth proportional to 1,105,664.40, 1,660,246.20 and 839,725.20 is: 1,260,916.58
Step by Step Solution
- Step 1: Write the proportion equation
1,105,664.40 : 1,660,246.20 = 839,725.20 : x - Step 2: Convert to fraction form
1,105,664.40/1,660,246.20 = 839,725.20/x - Step 3: Cross multiply
1,105,664.40x = 1,660,246.20 × 839,725.20 - Step 4: Simplify right side
1,105,664.40x = 1,394,150,572,344.24 - Step 5: Solve for x
x = 1,394,150,572,344.24/1,105,664.40 - Step 6: Final answer
x = 1,260,916.58
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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.