Finding the Fourth Proportional to 1,139,163.11, 1,571,304.42 and 730,617.84
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Solution
The fourth proportional to 1,139,163.11, 1,571,304.42 and 730,617.84 is: 1,007,777.58
Step by Step Solution
- Step 1: Write the proportion equation
1,139,163.11 : 1,571,304.42 = 730,617.84 : x - Step 2: Convert to fraction form
1,139,163.11/1,571,304.42 = 730,617.84/x - Step 3: Cross multiply
1,139,163.11x = 1,571,304.42 × 730,617.84 - Step 4: Simplify right side
1,139,163.11x = 1,148,023,041,322.85 - Step 5: Solve for x
x = 1,148,023,041,322.85/1,139,163.11 - Step 6: Final answer
x = 1,007,777.58
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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.