Finding the Fourth Proportional to 1,380,405.96, 2,070,817.92 and 433,687.68
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Solution
The fourth proportional to 1,380,405.96, 2,070,817.92 and 433,687.68 is: 650,597.18
Step by Step Solution
- Step 1: Write the proportion equation
1,380,405.96 : 2,070,817.92 = 433,687.68 : x - Step 2: Convert to fraction form
1,380,405.96/2,070,817.92 = 433,687.68/x - Step 3: Cross multiply
1,380,405.96x = 2,070,817.92 × 433,687.68 - Step 4: Simplify right side
1,380,405.96x = 898,088,219,427.23 - Step 5: Solve for x
x = 898,088,219,427.23/1,380,405.96 - Step 6: Final answer
x = 650,597.18
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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.