Finding the Fourth Proportional to 391,241.08, 587,079.67 and 211,322.87
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Solution
The fourth proportional to 391,241.08, 587,079.67 and 211,322.87 is: 317,102.08
Step by Step Solution
- Step 1: Write the proportion equation
391,241.08 : 587,079.67 = 211,322.87 : x - Step 2: Convert to fraction form
391,241.08/587,079.67 = 211,322.87/x - Step 3: Cross multiply
391,241.08x = 587,079.67 × 211,322.87 - Step 4: Simplify right side
391,241.08x = 124,063,360,783.05 - Step 5: Solve for x
x = 124,063,360,783.05/391,241.08 - Step 6: Final answer
x = 317,102.08
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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.