Finding the Fourth Proportional to 625,857.99, 937,821.47 and 422,658.15
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Solution
The fourth proportional to 625,857.99, 937,821.47 and 422,658.15 is: 633,335.18
Step by Step Solution
- Step 1: Write the proportion equation
625,857.99 : 937,821.47 = 422,658.15 : x - Step 2: Convert to fraction form
625,857.99/937,821.47 = 422,658.15/x - Step 3: Cross multiply
625,857.99x = 937,821.47 × 422,658.15 - Step 4: Simplify right side
625,857.99x = 396,377,885,427.19 - Step 5: Solve for x
x = 396,377,885,427.19/625,857.99 - Step 6: Final answer
x = 633,335.18
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.