Finding the Fourth Proportional to 1,139,163.49, 1,571,304.94 and 730,618.22
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Solution
The fourth proportional to 1,139,163.49, 1,571,304.94 and 730,618.22 is: 1,007,778.09
Step by Step Solution
- Step 1: Write the proportion equation
1,139,163.49 : 1,571,304.94 = 730,618.22 : x - Step 2: Convert to fraction form
1,139,163.49/1,571,304.94 = 730,618.22/x - Step 3: Cross multiply
1,139,163.49x = 1,571,304.94 × 730,618.22 - Step 4: Simplify right side
1,139,163.49x = 1,148,024,008,656.94 - Step 5: Solve for x
x = 1,148,024,008,656.94/1,139,163.49 - Step 6: Final answer
x = 1,007,778.09
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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.