Finding the Fourth Proportional to 625,571.72, 863,688.18 and 411,092.36
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Solution
The fourth proportional to 625,571.72, 863,688.18 and 411,092.36 is: 567,569.79
Step by Step Solution
- Step 1: Write the proportion equation
625,571.72 : 863,688.18 = 411,092.36 : x - Step 2: Convert to fraction form
625,571.72/863,688.18 = 411,092.36/x - Step 3: Cross multiply
625,571.72x = 863,688.18 × 411,092.36 - Step 4: Simplify right side
625,571.72x = 355,055,612,220.31 - Step 5: Solve for x
x = 355,055,612,220.31/625,571.72 - Step 6: Final answer
x = 567,569.79
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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.