Finding the Fourth Proportional to 479,354.99, 661,507.22 and 261,563.60
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Solution
The fourth proportional to 479,354.99, 661,507.22 and 261,563.60 is: 360,956.32
Step by Step Solution
- Step 1: Write the proportion equation
479,354.99 : 661,507.22 = 261,563.60 : x - Step 2: Convert to fraction form
479,354.99/661,507.22 = 261,563.60/x - Step 3: Cross multiply
479,354.99x = 661,507.22 × 261,563.60 - Step 4: Simplify right side
479,354.99x = 173,026,212,196.87 - Step 5: Solve for x
x = 173,026,212,196.87/479,354.99 - Step 6: Final answer
x = 360,956.32
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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.