Finding the Fourth Proportional to 745,770.12, 1,029,164.50 and 406,231.08
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Solution
The fourth proportional to 745,770.12, 1,029,164.50 and 406,231.08 is: 560,599.84
Step by Step Solution
- Step 1: Write the proportion equation
745,770.12 : 1,029,164.50 = 406,231.08 : x - Step 2: Convert to fraction form
745,770.12/1,029,164.50 = 406,231.08/x - Step 3: Cross multiply
745,770.12x = 1,029,164.50 × 406,231.08 - Step 4: Simplify right side
745,770.12x = 418,078,606,332.66 - Step 5: Solve for x
x = 418,078,606,332.66/745,770.12 - Step 6: Final answer
x = 560,599.84
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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.