Finding the Fourth Proportional to 1,119,239.10, 1,678,243.05 and 764,653.50
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Solution
The fourth proportional to 1,119,239.10, 1,678,243.05 and 764,653.50 is: 1,146,559.68
Step by Step Solution
- Step 1: Write the proportion equation
1,119,239.10 : 1,678,243.05 = 764,653.50 : x - Step 2: Convert to fraction form
1,119,239.10/1,678,243.05 = 764,653.50/x - Step 3: Cross multiply
1,119,239.10x = 1,678,243.05 × 764,653.50 - Step 4: Simplify right side
1,119,239.10x = 1,283,274,422,033.18 - Step 5: Solve for x
x = 1,283,274,422,033.18/1,119,239.10 - Step 6: Final answer
x = 1,146,559.68
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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.