Finding the Fourth Proportional to 419,312.81, 631,770.02 and 379,382.99
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Solution
The fourth proportional to 419,312.81, 631,770.02 and 379,382.99 is: 571,608.56
Step by Step Solution
- Step 1: Write the proportion equation
419,312.81 : 631,770.02 = 379,382.99 : x - Step 2: Convert to fraction form
419,312.81/631,770.02 = 379,382.99/x - Step 3: Cross multiply
419,312.81x = 631,770.02 × 379,382.99 - Step 4: Simplify right side
419,312.81x = 239,682,794,124.20 - Step 5: Solve for x
x = 239,682,794,124.20/419,312.81 - Step 6: Final answer
x = 571,608.56
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.