Finding the Fourth Proportional to 2,428,429.20, 3,351,237.24 and 1,340,702.88
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Solution
The fourth proportional to 2,428,429.20, 3,351,237.24 and 1,340,702.88 is: 1,850,172.70
Step by Step Solution
- Step 1: Write the proportion equation
2,428,429.20 : 3,351,237.24 = 1,340,702.88 : x - Step 2: Convert to fraction form
2,428,429.20/3,351,237.24 = 1,340,702.88/x - Step 3: Cross multiply
2,428,429.20x = 3,351,237.24 × 1,340,702.88 - Step 4: Simplify right side
2,428,429.20x = 4,493,013,419,231.25 - Step 5: Solve for x
x = 4,493,013,419,231.25/2,428,429.20 - Step 6: Final answer
x = 1,850,172.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.