Finding the Fourth Proportional to 440,921.69, 661,311.74 and 120,998.84
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Solution
The fourth proportional to 440,921.69, 661,311.74 and 120,998.84 is: 181,478.83
Step by Step Solution
- Step 1: Write the proportion equation
440,921.69 : 661,311.74 = 120,998.84 : x - Step 2: Convert to fraction form
440,921.69/661,311.74 = 120,998.84/x - Step 3: Cross multiply
440,921.69x = 661,311.74 × 120,998.84 - Step 4: Simplify right side
440,921.69x = 80,017,954,466.67 - Step 5: Solve for x
x = 80,017,954,466.67/440,921.69 - Step 6: Final answer
x = 181,478.83
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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.