Finding the Fourth Proportional to 1,292,597.93, 1,939,187.64 and 394,130.49
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Solution
The fourth proportional to 1,292,597.93, 1,939,187.64 and 394,130.49 is: 591,284.39
Step by Step Solution
- Step 1: Write the proportion equation
1,292,597.93 : 1,939,187.64 = 394,130.49 : x - Step 2: Convert to fraction form
1,292,597.93/1,939,187.64 = 394,130.49/x - Step 3: Cross multiply
1,292,597.93x = 1,939,187.64 × 394,130.49 - Step 4: Simplify right side
1,292,597.93x = 764,292,974,755.14 - Step 5: Solve for x
x = 764,292,974,755.14/1,292,597.93 - Step 6: Final answer
x = 591,284.39
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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.