Finding the Fourth Proportional to 1,431,516.30, 2,147,218.35 and 484,886.98
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Solution
The fourth proportional to 1,431,516.30, 2,147,218.35 and 484,886.98 is: 727,311.47
Step by Step Solution
- Step 1: Write the proportion equation
1,431,516.30 : 2,147,218.35 = 484,886.98 : x - Step 2: Convert to fraction form
1,431,516.30/2,147,218.35 = 484,886.98/x - Step 3: Cross multiply
1,431,516.30x = 2,147,218.35 × 484,886.98 - Step 4: Simplify right side
1,431,516.30x = 1,041,158,221,132.08 - Step 5: Solve for x
x = 1,041,158,221,132.08/1,431,516.30 - Step 6: Final answer
x = 727,311.47
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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.