Finding the Fourth Proportional to 720,251.02, 993,919.68 and 397,954.18
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Solution
The fourth proportional to 720,251.02, 993,919.68 and 397,954.18 is: 549,162.00
Step by Step Solution
- Step 1: Write the proportion equation
720,251.02 : 993,919.68 = 397,954.18 : x - Step 2: Convert to fraction form
720,251.02/993,919.68 = 397,954.18/x - Step 3: Cross multiply
720,251.02x = 993,919.68 × 397,954.18 - Step 4: Simplify right side
720,251.02x = 395,534,491,240.26 - Step 5: Solve for x
x = 395,534,491,240.26/720,251.02 - Step 6: Final answer
x = 549,162.00
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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.