Finding the Fourth Proportional to 871,408.86, 1,202,520.24 and 484,214.28
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Solution
The fourth proportional to 871,408.86, 1,202,520.24 and 484,214.28 is: 668,202.38
Step by Step Solution
- Step 1: Write the proportion equation
871,408.86 : 1,202,520.24 = 484,214.28 : x - Step 2: Convert to fraction form
871,408.86/1,202,520.24 = 484,214.28/x - Step 3: Cross multiply
871,408.86x = 1,202,520.24 × 484,214.28 - Step 4: Simplify right side
871,408.86x = 582,277,472,197.03 - Step 5: Solve for x
x = 582,277,472,197.03/871,408.86 - Step 6: Final answer
x = 668,202.38
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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.