Finding the Fourth Proportional to 480,382.16, 720,610.68 and 280,723.28
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Solution
The fourth proportional to 480,382.16, 720,610.68 and 280,723.28 is: 421,106.80
Step by Step Solution
- Step 1: Write the proportion equation
480,382.16 : 720,610.68 = 280,723.28 : x - Step 2: Convert to fraction form
480,382.16/720,610.68 = 280,723.28/x - Step 3: Cross multiply
480,382.16x = 720,610.68 × 280,723.28 - Step 4: Simplify right side
480,382.16x = 202,292,193,692.63 - Step 5: Solve for x
x = 202,292,193,692.63/480,382.16 - Step 6: Final answer
x = 421,106.80
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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.