Finding the Fourth Proportional to 871,639.60, 1,202,893.49 and 484,462.74
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Solution
The fourth proportional to 871,639.60, 1,202,893.49 and 484,462.74 is: 668,575.72
Step by Step Solution
- Step 1: Write the proportion equation
871,639.60 : 1,202,893.49 = 484,462.74 : x - Step 2: Convert to fraction form
871,639.60/1,202,893.49 = 484,462.74/x - Step 3: Cross multiply
871,639.60x = 1,202,893.49 × 484,462.74 - Step 4: Simplify right side
871,639.60x = 582,757,076,093.56 - Step 5: Solve for x
x = 582,757,076,093.56/871,639.60 - Step 6: Final answer
x = 668,575.72
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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.