Finding the Fourth Proportional to 738,276.80, 1,107,415.20 and 365,028.80
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Solution
The fourth proportional to 738,276.80, 1,107,415.20 and 365,028.80 is: 547,543.20
Step by Step Solution
- Step 1: Write the proportion equation
738,276.80 : 1,107,415.20 = 365,028.80 : x - Step 2: Convert to fraction form
738,276.80/1,107,415.20 = 365,028.80/x - Step 3: Cross multiply
738,276.80x = 1,107,415.20 × 365,028.80 - Step 4: Simplify right side
738,276.80x = 404,238,441,557.76 - Step 5: Solve for x
x = 404,238,441,557.76/738,276.80 - Step 6: Final answer
x = 547,543.20
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1.5x scale
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.