Finding the Fourth Proportional to 1,378,694.44, 1,902,775.62 and 775,199.08
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Solution
The fourth proportional to 1,378,694.44, 1,902,775.62 and 775,199.08 is: 1,069,874.42
Step by Step Solution
- Step 1: Write the proportion equation
1,378,694.44 : 1,902,775.62 = 775,199.08 : x - Step 2: Convert to fraction form
1,378,694.44/1,902,775.62 = 775,199.08/x - Step 3: Cross multiply
1,378,694.44x = 1,902,775.62 × 775,199.08 - Step 4: Simplify right side
1,378,694.44x = 1,475,029,910,070.43 - Step 5: Solve for x
x = 1,475,029,910,070.43/1,378,694.44 - Step 6: Final answer
x = 1,069,874.42
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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.