Finding the Fourth Proportional to 507,391.41, 699,716.99 and 303,409.11
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Solution
The fourth proportional to 507,391.41, 699,716.99 and 303,409.11 is: 418,415.66
Step by Step Solution
- Step 1: Write the proportion equation
507,391.41 : 699,716.99 = 303,409.11 : x - Step 2: Convert to fraction form
507,391.41/699,716.99 = 303,409.11/x - Step 3: Cross multiply
507,391.41x = 699,716.99 × 303,409.11 - Step 4: Simplify right side
507,391.41x = 212,300,509,187.78 - Step 5: Solve for x
x = 212,300,509,187.78/507,391.41 - Step 6: Final answer
x = 418,415.66
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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.