Finding the Fourth Proportional to 820,221.96, 1,230,397.36 and 221,174.08
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Solution
The fourth proportional to 820,221.96, 1,230,397.36 and 221,174.08 is: 331,778.49
Step by Step Solution
- Step 1: Write the proportion equation
820,221.96 : 1,230,397.36 = 221,174.08 : x - Step 2: Convert to fraction form
820,221.96/1,230,397.36 = 221,174.08/x - Step 3: Cross multiply
820,221.96x = 1,230,397.36 × 221,174.08 - Step 4: Simplify right side
820,221.96x = 272,132,004,132.43 - Step 5: Solve for x
x = 272,132,004,132.43/820,221.96 - Step 6: Final answer
x = 331,778.49
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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.