Finding the Fourth Proportional to 1,107,457.20, 1,661,554.35 and 397,540.80
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Solution
The fourth proportional to 1,107,457.20, 1,661,554.35 and 397,540.80 is: 596,443.50
Step by Step Solution
- Step 1: Write the proportion equation
1,107,457.20 : 1,661,554.35 = 397,540.80 : x - Step 2: Convert to fraction form
1,107,457.20/1,661,554.35 = 397,540.80/x - Step 3: Cross multiply
1,107,457.20x = 1,661,554.35 × 397,540.80 - Step 4: Simplify right side
1,107,457.20x = 660,535,645,542.48 - Step 5: Solve for x
x = 660,535,645,542.48/1,107,457.20 - Step 6: Final answer
x = 596,443.50
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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.