Finding the Fourth Proportional to 639,829.24, 959,645.42 and 213,372.52
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Solution
The fourth proportional to 639,829.24, 959,645.42 and 213,372.52 is: 320,025.95
Step by Step Solution
- Step 1: Write the proportion equation
639,829.24 : 959,645.42 = 213,372.52 : x - Step 2: Convert to fraction form
639,829.24/959,645.42 = 213,372.52/x - Step 3: Cross multiply
639,829.24x = 959,645.42 × 213,372.52 - Step 4: Simplify right side
639,829.24x = 204,761,961,571.86 - Step 5: Solve for x
x = 204,761,961,571.86/639,829.24 - Step 6: Final answer
x = 320,025.95
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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.