Finding the Fourth Proportional to 1,107,163.20, 1,660,744.80 and 547,291.20
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Solution
The fourth proportional to 1,107,163.20, 1,660,744.80 and 547,291.20 is: 820,936.80
Step by Step Solution
- Step 1: Write the proportion equation
1,107,163.20 : 1,660,744.80 = 547,291.20 : x - Step 2: Convert to fraction form
1,107,163.20/1,660,744.80 = 547,291.20/x - Step 3: Cross multiply
1,107,163.20x = 1,660,744.80 × 547,291.20 - Step 4: Simplify right side
1,107,163.20x = 908,911,014,485.76 - Step 5: Solve for x
x = 908,911,014,485.76/1,107,163.20 - Step 6: Final answer
x = 820,936.80
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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.