Finding the Fourth Proportional to 1,147,479.40, 1,583,512.84 and 631,222.19
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Solution
The fourth proportional to 1,147,479.40, 1,583,512.84 and 631,222.19 is: 871,081.82
Step by Step Solution
- Step 1: Write the proportion equation
1,147,479.40 : 1,583,512.84 = 631,222.19 : x - Step 2: Convert to fraction form
1,147,479.40/1,583,512.84 = 631,222.19/x - Step 3: Cross multiply
1,147,479.40x = 1,583,512.84 × 631,222.19 - Step 4: Simplify right side
1,147,479.40x = 999,548,442,757.92 - Step 5: Solve for x
x = 999,548,442,757.92/1,147,479.40 - Step 6: Final answer
x = 871,081.82
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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.