Finding the Fourth Proportional to 1,072,378.81, 1,608,567.18 and 273,660.36
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Solution
The fourth proportional to 1,072,378.81, 1,608,567.18 and 273,660.36 is: 410,490.28
Step by Step Solution
- Step 1: Write the proportion equation
1,072,378.81 : 1,608,567.18 = 273,660.36 : x - Step 2: Convert to fraction form
1,072,378.81/1,608,567.18 = 273,660.36/x - Step 3: Cross multiply
1,072,378.81x = 1,608,567.18 × 273,660.36 - Step 4: Simplify right side
1,072,378.81x = 440,201,073,562.99 - Step 5: Solve for x
x = 440,201,073,562.99/1,072,378.81 - Step 6: Final answer
x = 410,490.28
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1.5x scale
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.