Finding the Fourth Proportional to 729,601.05, 1,006,859.41 and 402,936.10
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Solution
The fourth proportional to 729,601.05, 1,006,859.41 and 402,936.10 is: 556,057.31
Step by Step Solution
- Step 1: Write the proportion equation
729,601.05 : 1,006,859.41 = 402,936.10 : x - Step 2: Convert to fraction form
729,601.05/1,006,859.41 = 402,936.10/x - Step 3: Cross multiply
729,601.05x = 1,006,859.41 × 402,936.10 - Step 4: Simplify right side
729,601.05x = 405,699,998,879.10 - Step 5: Solve for x
x = 405,699,998,879.10/729,601.05 - Step 6: Final answer
x = 556,057.31
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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.