Finding the Fourth Proportional to 1,431,125.70, 2,146,688.55 and 871,253.70
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Solution
The fourth proportional to 1,431,125.70, 2,146,688.55 and 871,253.70 is: 1,306,880.55
Step by Step Solution
- Step 1: Write the proportion equation
1,431,125.70 : 2,146,688.55 = 871,253.70 : x - Step 2: Convert to fraction form
1,431,125.70/2,146,688.55 = 871,253.70/x - Step 3: Cross multiply
1,431,125.70x = 2,146,688.55 × 871,253.70 - Step 4: Simplify right side
1,431,125.70x = 1,870,310,341,935.13 - Step 5: Solve for x
x = 1,870,310,341,935.13/1,431,125.70 - Step 6: Final answer
x = 1,306,880.55
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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.