Finding the Fourth Proportional to 719,827.36, 993,361.76 and 418,040.80
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Solution
The fourth proportional to 719,827.36, 993,361.76 and 418,040.80 is: 576,896.31
Step by Step Solution
- Step 1: Write the proportion equation
719,827.36 : 993,361.76 = 418,040.80 : x - Step 2: Convert to fraction form
719,827.36/993,361.76 = 418,040.80/x - Step 3: Cross multiply
719,827.36x = 993,361.76 × 418,040.80 - Step 4: Simplify right side
719,827.36x = 415,265,744,839.81 - Step 5: Solve for x
x = 415,265,744,839.81/719,827.36 - Step 6: Final answer
x = 576,896.31
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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.