Finding the Fourth Proportional to 391,919.49, 587,772.44 and 107,542.62
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Solution
The fourth proportional to 391,919.49, 587,772.44 and 107,542.62 is: 161,284.63
Step by Step Solution
- Step 1: Write the proportion equation
391,919.49 : 587,772.44 = 107,542.62 : x - Step 2: Convert to fraction form
391,919.49/587,772.44 = 107,542.62/x - Step 3: Cross multiply
391,919.49x = 587,772.44 × 107,542.62 - Step 4: Simplify right side
391,919.49x = 63,210,588,161.39 - Step 5: Solve for x
x = 63,210,588,161.39/391,919.49 - Step 6: Final answer
x = 161,284.63
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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.