Finding the Fourth Proportional to 625,571.49, 864,006.11 and 411,666.49
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Solution
The fourth proportional to 625,571.49, 864,006.11 and 411,666.49 is: 568,571.89
Step by Step Solution
- Step 1: Write the proportion equation
625,571.49 : 864,006.11 = 411,666.49 : x - Step 2: Convert to fraction form
625,571.49/864,006.11 = 411,666.49/x - Step 3: Cross multiply
625,571.49x = 864,006.11 × 411,666.49 - Step 4: Simplify right side
625,571.49x = 355,682,362,642.25 - Step 5: Solve for x
x = 355,682,362,642.25/625,571.49 - Step 6: Final answer
x = 568,571.89
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1.5x scale
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.