Finding the Fourth Proportional to 1,379,481.36, 2,069,309.50 and 432,889.44
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Solution
The fourth proportional to 1,379,481.36, 2,069,309.50 and 432,889.44 is: 649,361.61
Step by Step Solution
- Step 1: Write the proportion equation
1,379,481.36 : 2,069,309.50 = 432,889.44 : x - Step 2: Convert to fraction form
1,379,481.36/2,069,309.50 = 432,889.44/x - Step 3: Cross multiply
1,379,481.36x = 2,069,309.50 × 432,889.44 - Step 4: Simplify right side
1,379,481.36x = 895,782,230,641.68 - Step 5: Solve for x
x = 895,782,230,641.68/1,379,481.36 - Step 6: Final answer
x = 649,361.61
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1.5x scale
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.