Finding the Fourth Proportional to 1,339,472.12, 2,009,223.84 and 392,861.84
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Solution
The fourth proportional to 1,339,472.12, 2,009,223.84 and 392,861.84 is: 589,297.35
Step by Step Solution
- Step 1: Write the proportion equation
1,339,472.12 : 2,009,223.84 = 392,861.84 : x - Step 2: Convert to fraction form
1,339,472.12/2,009,223.84 = 392,861.84/x - Step 3: Cross multiply
1,339,472.12x = 2,009,223.84 × 392,861.84 - Step 4: Simplify right side
1,339,472.12x = 789,347,374,754.27 - Step 5: Solve for x
x = 789,347,374,754.27/1,339,472.12 - Step 6: Final answer
x = 589,297.35
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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.