Finding the Fourth Proportional to 657,201.20, 985,801.80 and 447,249.20
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Solution
The fourth proportional to 657,201.20, 985,801.80 and 447,249.20 is: 670,873.80
Step by Step Solution
- Step 1: Write the proportion equation
657,201.20 : 985,801.80 = 447,249.20 : x - Step 2: Convert to fraction form
657,201.20/985,801.80 = 447,249.20/x - Step 3: Cross multiply
657,201.20x = 985,801.80 × 447,249.20 - Step 4: Simplify right side
657,201.20x = 440,899,066,408.56 - Step 5: Solve for x
x = 440,899,066,408.56/657,201.20 - Step 6: Final answer
x = 670,873.80
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1.5x scale
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.