Finding the Fourth Proportional to 561,808.44, 775,105.74 and 319,919.49
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Solution
The fourth proportional to 561,808.44, 775,105.74 and 319,919.49 is: 441,380.75
Step by Step Solution
- Step 1: Write the proportion equation
561,808.44 : 775,105.74 = 319,919.49 : x - Step 2: Convert to fraction form
561,808.44/775,105.74 = 319,919.49/x - Step 3: Cross multiply
561,808.44x = 775,105.74 × 319,919.49 - Step 4: Simplify right side
561,808.44x = 247,971,433,036.87 - Step 5: Solve for x
x = 247,971,433,036.87/561,808.44 - Step 6: Final answer
x = 441,380.75
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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.