Finding the Fourth Proportional to 804,678.12, 1,207,018.79 and 299,349.90
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Solution
The fourth proportional to 804,678.12, 1,207,018.79 and 299,349.90 is: 449,025.45
Step by Step Solution
- Step 1: Write the proportion equation
804,678.12 : 1,207,018.79 = 299,349.90 : x - Step 2: Convert to fraction form
804,678.12/1,207,018.79 = 299,349.90/x - Step 3: Cross multiply
804,678.12x = 1,207,018.79 × 299,349.90 - Step 4: Simplify right side
804,678.12x = 361,320,948,797.90 - Step 5: Solve for x
x = 361,320,948,797.90/804,678.12 - Step 6: Final answer
x = 449,025.45
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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.