Finding the Fourth Proportional to 789,614.10, 1,184,421.30 and 221,078.94
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Solution
The fourth proportional to 789,614.10, 1,184,421.30 and 221,078.94 is: 331,618.45
Step by Step Solution
- Step 1: Write the proportion equation
789,614.10 : 1,184,421.30 = 221,078.94 : x - Step 2: Convert to fraction form
789,614.10/1,184,421.30 = 221,078.94/x - Step 3: Cross multiply
789,614.10x = 1,184,421.30 × 221,078.94 - Step 4: Simplify right side
789,614.10x = 261,850,605,517.42 - Step 5: Solve for x
x = 261,850,605,517.42/789,614.10 - Step 6: Final answer
x = 331,618.45
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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.