Finding the Fourth Proportional to 3,102,437.28, 4,279,614.80 and 1,861,726.56
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Solution
The fourth proportional to 3,102,437.28, 4,279,614.80 and 1,861,726.56 is: 2,568,133.32
Step by Step Solution
- Step 1: Write the proportion equation
3,102,437.28 : 4,279,614.80 = 1,861,726.56 : x - Step 2: Convert to fraction form
3,102,437.28/4,279,614.80 = 1,861,726.56/x - Step 3: Cross multiply
3,102,437.28x = 4,279,614.80 × 1,861,726.56 - Step 4: Simplify right side
3,102,437.28x = 7,967,472,539,729.09 - Step 5: Solve for x
x = 7,967,472,539,729.09/3,102,437.28 - Step 6: Final answer
x = 2,568,133.32
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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.