Finding the Fourth Proportional to 1,468,135.20, 2,202,202.80 and 521,601.60
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Solution
The fourth proportional to 1,468,135.20, 2,202,202.80 and 521,601.60 is: 782,402.40
Step by Step Solution
- Step 1: Write the proportion equation
1,468,135.20 : 2,202,202.80 = 521,601.60 : x - Step 2: Convert to fraction form
1,468,135.20/2,202,202.80 = 521,601.60/x - Step 3: Cross multiply
1,468,135.20x = 2,202,202.80 × 521,601.60 - Step 4: Simplify right side
1,468,135.20x = 1,148,672,504,004.48 - Step 5: Solve for x
x = 1,148,672,504,004.48/1,468,135.20 - Step 6: Final answer
x = 782,402.40
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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.