Finding the Fourth Proportional to 1,118,121.55, 1,542,614.29 and 731,163.49
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Solution
The fourth proportional to 1,118,121.55, 1,542,614.29 and 731,163.49 is: 1,008,748.33
Step by Step Solution
- Step 1: Write the proportion equation
1,118,121.55 : 1,542,614.29 = 731,163.49 : x - Step 2: Convert to fraction form
1,118,121.55/1,542,614.29 = 731,163.49/x - Step 3: Cross multiply
1,118,121.55x = 1,542,614.29 × 731,163.49 - Step 4: Simplify right side
1,118,121.55x = 1,127,903,248,000.27 - Step 5: Solve for x
x = 1,127,903,248,000.27/1,118,121.55 - Step 6: Final answer
x = 1,008,748.33
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.