Finding the Fourth Proportional to 453,015.12, 625,485.60 and 317,350.08
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Solution
The fourth proportional to 453,015.12, 625,485.60 and 317,350.08 is: 438,170.60
Step by Step Solution
- Step 1: Write the proportion equation
453,015.12 : 625,485.60 = 317,350.08 : x - Step 2: Convert to fraction form
453,015.12/625,485.60 = 317,350.08/x - Step 3: Cross multiply
453,015.12x = 625,485.60 × 317,350.08 - Step 4: Simplify right side
453,015.12x = 198,497,905,198.85 - Step 5: Solve for x
x = 198,497,905,198.85/453,015.12 - Step 6: Final answer
x = 438,170.60
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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.