Finding the Fourth Proportional to 1,080,631.68, 1,620,947.50 and 406,864.14
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Solution
The fourth proportional to 1,080,631.68, 1,620,947.50 and 406,864.14 is: 610,296.20
Step by Step Solution
- Step 1: Write the proportion equation
1,080,631.68 : 1,620,947.50 = 406,864.14 : x - Step 2: Convert to fraction form
1,080,631.68/1,620,947.50 = 406,864.14/x - Step 3: Cross multiply
1,080,631.68x = 1,620,947.50 × 406,864.14 - Step 4: Simplify right side
1,080,631.68x = 659,505,410,572.65 - Step 5: Solve for x
x = 659,505,410,572.65/1,080,631.68 - Step 6: Final answer
x = 610,296.20
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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.