Finding the Fourth Proportional to 871,641.91, 1,202,896.68 and 484,465.05
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Solution
The fourth proportional to 871,641.91, 1,202,896.68 and 484,465.05 is: 668,578.91
Step by Step Solution
- Step 1: Write the proportion equation
871,641.91 : 1,202,896.68 = 484,465.05 : x - Step 2: Convert to fraction form
871,641.91/1,202,896.68 = 484,465.05/x - Step 3: Cross multiply
871,641.91x = 1,202,896.68 × 484,465.05 - Step 4: Simplify right side
871,641.91x = 582,761,398,404.29 - Step 5: Solve for x
x = 582,761,398,404.29/871,641.91 - Step 6: Final answer
x = 668,578.91
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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.