Finding the Fourth Proportional to 871,409.13, 1,202,537.10 and 478,947.12
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Solution
The fourth proportional to 871,409.13, 1,202,537.10 and 478,947.12 is: 660,942.90
Step by Step Solution
- Step 1: Write the proportion equation
871,409.13 : 1,202,537.10 = 478,947.12 : x - Step 2: Convert to fraction form
871,409.13/1,202,537.10 = 478,947.12/x - Step 3: Cross multiply
871,409.13x = 1,202,537.10 × 478,947.12 - Step 4: Simplify right side
871,409.13x = 575,951,680,738.15 - Step 5: Solve for x
x = 575,951,680,738.15/871,409.13 - Step 6: Final answer
x = 660,942.90
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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.