Finding the Fourth Proportional to 1,147,425.12, 1,583,485.68 and 631,200.96
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Solution
The fourth proportional to 1,147,425.12, 1,583,485.68 and 631,200.96 is: 871,078.79
Step by Step Solution
- Step 1: Write the proportion equation
1,147,425.12 : 1,583,485.68 = 631,200.96 : x - Step 2: Convert to fraction form
1,147,425.12/1,583,485.68 = 631,200.96/x - Step 3: Cross multiply
1,147,425.12x = 1,583,485.68 × 631,200.96 - Step 4: Simplify right side
1,147,425.12x = 999,497,681,362.25 - Step 5: Solve for x
x = 999,497,681,362.25/1,147,425.12 - Step 6: Final answer
x = 871,078.79
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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.