Finding the Fourth Proportional to 746,190, 1,029,749.49 and 406,665.54
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Solution
The fourth proportional to 746,190, 1,029,749.49 and 406,665.54 is: 561,202.42
Step by Step Solution
- Step 1: Write the proportion equation
746,190 : 1,029,749.49 = 406,665.54 : x - Step 2: Convert to fraction form
746,190/1,029,749.49 = 406,665.54/x - Step 3: Cross multiply
746,190x = 1,029,749.49 × 406,665.54 - Step 4: Simplify right side
746,190x = 418,763,632,415.58 - Step 5: Solve for x
x = 418,763,632,415.58/746,190 - Step 6: Final answer
x = 561,202.42
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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.