Finding the Fourth Proportional to 1,278,350.68, 1,764,072.36 and 705,383.40
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Solution
The fourth proportional to 1,278,350.68, 1,764,072.36 and 705,383.40 is: 973,400.63
Step by Step Solution
- Step 1: Write the proportion equation
1,278,350.68 : 1,764,072.36 = 705,383.40 : x - Step 2: Convert to fraction form
1,278,350.68/1,764,072.36 = 705,383.40/x - Step 3: Cross multiply
1,278,350.68x = 1,764,072.36 × 705,383.40 - Step 4: Simplify right side
1,278,350.68x = 1,244,347,359,142.82 - Step 5: Solve for x
x = 1,244,347,359,142.82/1,278,350.68 - Step 6: Final answer
x = 973,400.63
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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.