Finding the Fourth Proportional to 1,619,567.75, 2,430,846.09 and 821,409.80
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Solution
The fourth proportional to 1,619,567.75, 2,430,846.09 and 821,409.80 is: 1,232,872.66
Step by Step Solution
- Step 1: Write the proportion equation
1,619,567.75 : 2,430,846.09 = 821,409.80 : x - Step 2: Convert to fraction form
1,619,567.75/2,430,846.09 = 821,409.80/x - Step 3: Cross multiply
1,619,567.75x = 2,430,846.09 × 821,409.80 - Step 4: Simplify right side
1,619,567.75x = 1,996,720,800,617.68 - Step 5: Solve for x
x = 1,996,720,800,617.68/1,619,567.75 - Step 6: Final answer
x = 1,232,872.66
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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.