Finding the Fourth Proportional to 745,769.12, 1,029,163.12 and 406,230.08
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Solution
The fourth proportional to 745,769.12, 1,029,163.12 and 406,230.08 is: 560,598.46
Step by Step Solution
- Step 1: Write the proportion equation
745,769.12 : 1,029,163.12 = 406,230.08 : x - Step 2: Convert to fraction form
745,769.12/1,029,163.12 = 406,230.08/x - Step 3: Cross multiply
745,769.12x = 1,029,163.12 × 406,230.08 - Step 4: Simplify right side
745,769.12x = 418,077,016,570.65 - Step 5: Solve for x
x = 418,077,016,570.65/745,769.12 - Step 6: Final answer
x = 560,598.46
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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.