Finding the Fourth Proportional to 1,394,755.44, 1,918,722.48 and 1,221,894.96
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Solution
The fourth proportional to 1,394,755.44, 1,918,722.48 and 1,221,894.96 is: 1,680,923.59
Step by Step Solution
- Step 1: Write the proportion equation
1,394,755.44 : 1,918,722.48 = 1,221,894.96 : x - Step 2: Convert to fraction form
1,394,755.44/1,918,722.48 = 1,221,894.96/x - Step 3: Cross multiply
1,394,755.44x = 1,918,722.48 × 1,221,894.96 - Step 4: Simplify right side
1,394,755.44x = 2,344,477,327,950.70 - Step 5: Solve for x
x = 2,344,477,327,950.70/1,394,755.44 - Step 6: Final answer
x = 1,680,923.59
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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.