Finding the Fourth Proportional to 1,431,545.09, 2,147,261.56 and 484,915.79
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Solution
The fourth proportional to 1,431,545.09, 2,147,261.56 and 484,915.79 is: 727,354.70
Step by Step Solution
- Step 1: Write the proportion equation
1,431,545.09 : 2,147,261.56 = 484,915.79 : x - Step 2: Convert to fraction form
1,431,545.09/2,147,261.56 = 484,915.79/x - Step 3: Cross multiply
1,431,545.09x = 2,147,261.56 × 484,915.79 - Step 4: Simplify right side
1,431,545.09x = 1,041,241,039,859.90 - Step 5: Solve for x
x = 1,041,241,039,859.90/1,431,545.09 - Step 6: Final answer
x = 727,354.70
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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.