Finding the Fourth Proportional to 2,825,379.21, 3,898,915.81 and 1,536,220.68
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Solution
The fourth proportional to 2,825,379.21, 3,898,915.81 and 1,536,220.68 is: 2,119,926.09
Step by Step Solution
- Step 1: Write the proportion equation
2,825,379.21 : 3,898,915.81 = 1,536,220.68 : x - Step 2: Convert to fraction form
2,825,379.21/3,898,915.81 = 1,536,220.68/x - Step 3: Cross multiply
2,825,379.21x = 3,898,915.81 × 1,536,220.68 - Step 4: Simplify right side
2,825,379.21x = 5,989,595,096,900.95 - Step 5: Solve for x
x = 5,989,595,096,900.95/2,825,379.21 - Step 6: Final answer
x = 2,119,926.09
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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.