Finding the Fourth Proportional to 1,378,424.53, 1,902,226.94 and 766,563.94
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Solution
The fourth proportional to 1,378,424.53, 1,902,226.94 and 766,563.94 is: 1,057,858.84
Step by Step Solution
- Step 1: Write the proportion equation
1,378,424.53 : 1,902,226.94 = 766,563.94 : x - Step 2: Convert to fraction form
1,378,424.53/1,902,226.94 = 766,563.94/x - Step 3: Cross multiply
1,378,424.53x = 1,902,226.94 × 766,563.94 - Step 4: Simplify right side
1,378,424.53x = 1,458,178,577,900.54 - Step 5: Solve for x
x = 1,458,178,577,900.54/1,378,424.53 - Step 6: Final answer
x = 1,057,858.84
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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.