Finding the Fourth Proportional to 3,409,179.28, 4,705,472.62 and 1,959,715.60
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Solution
The fourth proportional to 3,409,179.28, 4,705,472.62 and 1,959,715.60 is: 2,704,870.39
Step by Step Solution
- Step 1: Write the proportion equation
3,409,179.28 : 4,705,472.62 = 1,959,715.60 : x - Step 2: Convert to fraction form
3,409,179.28/4,705,472.62 = 1,959,715.60/x - Step 3: Cross multiply
3,409,179.28x = 4,705,472.62 × 1,959,715.60 - Step 4: Simplify right side
3,409,179.28x = 9,221,388,098,786.87 - Step 5: Solve for x
x = 9,221,388,098,786.87/3,409,179.28 - Step 6: Final answer
x = 2,704,870.39
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1.5x scale
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.