Finding the Fourth Proportional to 1,314,639.75, 1,814,202.99 and 711,027.75
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Solution
The fourth proportional to 1,314,639.75, 1,814,202.99 and 711,027.75 is: 981,218.37
Step by Step Solution
- Step 1: Write the proportion equation
1,314,639.75 : 1,814,202.99 = 711,027.75 : x - Step 2: Convert to fraction form
1,314,639.75/1,814,202.99 = 711,027.75/x - Step 3: Cross multiply
1,314,639.75x = 1,814,202.99 × 711,027.75 - Step 4: Simplify right side
1,314,639.75x = 1,289,948,670,022.97 - Step 5: Solve for x
x = 1,289,948,670,022.97/1,314,639.75 - Step 6: Final answer
x = 981,218.37
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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.