Finding the Fourth Proportional to 726,131.70, 1,090,234.35 and 411,203.70
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Solution
The fourth proportional to 726,131.70, 1,090,234.35 and 411,203.70 is: 617,392.68
Step by Step Solution
- Step 1: Write the proportion equation
726,131.70 : 1,090,234.35 = 411,203.70 : x - Step 2: Convert to fraction form
726,131.70/1,090,234.35 = 411,203.70/x - Step 3: Cross multiply
726,131.70x = 1,090,234.35 × 411,203.70 - Step 4: Simplify right side
726,131.70x = 448,308,398,587.10 - Step 5: Solve for x
x = 448,308,398,587.10/726,131.70 - Step 6: Final answer
x = 617,392.68
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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.