Finding the Fourth Proportional to 2,153,846.40, 3,230,740.80 and 657,945.60
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Solution
The fourth proportional to 2,153,846.40, 3,230,740.80 and 657,945.60 is: 986,909.60
Step by Step Solution
- Step 1: Write the proportion equation
2,153,846.40 : 3,230,740.80 = 657,945.60 : x - Step 2: Convert to fraction form
2,153,846.40/3,230,740.80 = 657,945.60/x - Step 3: Cross multiply
2,153,846.40x = 3,230,740.80 × 657,945.60 - Step 4: Simplify right side
2,153,846.40x = 2,125,651,694,100.48 - Step 5: Solve for x
x = 2,125,651,694,100.48/2,153,846.40 - Step 6: Final answer
x = 986,909.60
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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.