Finding the Fourth Proportional to 815,532.75, 1,125,435.20 and 457,836.75
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Solution
The fourth proportional to 815,532.75, 1,125,435.20 and 457,836.75 is: 631,814.72
Step by Step Solution
- Step 1: Write the proportion equation
815,532.75 : 1,125,435.20 = 457,836.75 : x - Step 2: Convert to fraction form
815,532.75/1,125,435.20 = 457,836.75/x - Step 3: Cross multiply
815,532.75x = 1,125,435.20 × 457,836.75 - Step 4: Simplify right side
815,532.75x = 515,265,594,303.60 - Step 5: Solve for x
x = 515,265,594,303.60/815,532.75 - Step 6: Final answer
x = 631,814.72
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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.