Finding the Fourth Proportional to 1,213,922.28, 1,821,117.78 and 465,909.96
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Solution
The fourth proportional to 1,213,922.28, 1,821,117.78 and 465,909.96 is: 698,954.89
Step by Step Solution
- Step 1: Write the proportion equation
1,213,922.28 : 1,821,117.78 = 465,909.96 : x - Step 2: Convert to fraction form
1,213,922.28/1,821,117.78 = 465,909.96/x - Step 3: Cross multiply
1,213,922.28x = 1,821,117.78 × 465,909.96 - Step 4: Simplify right side
1,213,922.28x = 848,476,912,035.09 - Step 5: Solve for x
x = 848,476,912,035.09/1,213,922.28 - Step 6: Final answer
x = 698,954.89
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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.