Finding the Fourth Proportional to 871,138.24, 1,306,430.76 and 280,024
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Solution
The fourth proportional to 871,138.24, 1,306,430.76 and 280,024 is: 419,947.09
Step by Step Solution
- Step 1: Write the proportion equation
871,138.24 : 1,306,430.76 = 280,024 : x - Step 2: Convert to fraction form
871,138.24/1,306,430.76 = 280,024/x - Step 3: Cross multiply
871,138.24x = 1,306,430.76 × 280,024 - Step 4: Simplify right side
871,138.24x = 365,831,967,138.24 - Step 5: Solve for x
x = 365,831,967,138.24/871,138.24 - Step 6: Final answer
x = 419,947.09
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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.