Finding the Fourth Proportional to 420,360.97, 580,360.58 and 269,720.41
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Solution
The fourth proportional to 420,360.97, 580,360.58 and 269,720.41 is: 372,382.56
Step by Step Solution
- Step 1: Write the proportion equation
420,360.97 : 580,360.58 = 269,720.41 : x - Step 2: Convert to fraction form
420,360.97/580,360.58 = 269,720.41/x - Step 3: Cross multiply
420,360.97x = 580,360.58 × 269,720.41 - Step 4: Simplify right side
420,360.97x = 156,535,092,911.14 - Step 5: Solve for x
x = 156,535,092,911.14/420,360.97 - Step 6: Final answer
x = 372,382.56
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1.5x scale
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.