Finding the Fourth Proportional to 2,618,862.49, 3,928,459.79 and 821,816.87
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Solution
The fourth proportional to 2,618,862.49, 3,928,459.79 and 821,816.87 is: 1,232,777.42
Step by Step Solution
- Step 1: Write the proportion equation
2,618,862.49 : 3,928,459.79 = 821,816.87 : x - Step 2: Convert to fraction form
2,618,862.49/3,928,459.79 = 821,816.87/x - Step 3: Cross multiply
2,618,862.49x = 3,928,459.79 × 821,816.87 - Step 4: Simplify right side
2,618,862.49x = 3,228,474,534,250.72 - Step 5: Solve for x
x = 3,228,474,534,250.72/2,618,862.49 - Step 6: Final answer
x = 1,232,777.42
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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.