Finding the Fourth Proportional to 743,018.08, 1,025,293.98 and 420,665.26
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Solution
The fourth proportional to 743,018.08, 1,025,293.98 and 420,665.26 is: 580,477.88
Step by Step Solution
- Step 1: Write the proportion equation
743,018.08 : 1,025,293.98 = 420,665.26 : x - Step 2: Convert to fraction form
743,018.08/1,025,293.98 = 420,665.26/x - Step 3: Cross multiply
743,018.08x = 1,025,293.98 × 420,665.26 - Step 4: Simplify right side
743,018.08x = 431,305,558,673.14 - Step 5: Solve for x
x = 431,305,558,673.14/743,018.08 - Step 6: Final answer
x = 580,477.88
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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.