Finding the Fourth Proportional to 2,618,936.13, 3,927,258.73 and 1,321,289.93
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Solution
The fourth proportional to 2,618,936.13, 3,927,258.73 and 1,321,289.93 is: 1,981,356.99
Step by Step Solution
- Step 1: Write the proportion equation
2,618,936.13 : 3,927,258.73 = 1,321,289.93 : x - Step 2: Convert to fraction form
2,618,936.13/3,927,258.73 = 1,321,289.93/x - Step 3: Cross multiply
2,618,936.13x = 3,927,258.73 × 1,321,289.93 - Step 4: Simplify right side
2,618,936.13x = 5,189,047,412,453.59 - Step 5: Solve for x
x = 5,189,047,412,453.59/2,618,936.13 - Step 6: Final answer
x = 1,981,356.99
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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.