Finding the Fourth Proportional to 438,078.20, 656,195.70 and 364,350.20
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Solution
The fourth proportional to 438,078.20, 656,195.70 and 364,350.20 is: 545,758.80
Step by Step Solution
- Step 1: Write the proportion equation
438,078.20 : 656,195.70 = 364,350.20 : x - Step 2: Convert to fraction form
438,078.20/656,195.70 = 364,350.20/x - Step 3: Cross multiply
438,078.20x = 656,195.70 × 364,350.20 - Step 4: Simplify right side
438,078.20x = 239,085,034,534.14 - Step 5: Solve for x
x = 239,085,034,534.14/438,078.20 - Step 6: Final answer
x = 545,758.80
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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.