Finding the Fourth Proportional to 438,642.20, 656,466.21 and 367,644.98
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Solution
The fourth proportional to 438,642.20, 656,466.21 and 367,644.98 is: 550,212.69
Step by Step Solution
- Step 1: Write the proportion equation
438,642.20 : 656,466.21 = 367,644.98 : x - Step 2: Convert to fraction form
438,642.20/656,466.21 = 367,644.98/x - Step 3: Cross multiply
438,642.20x = 656,466.21 × 367,644.98 - Step 4: Simplify right side
438,642.20x = 241,346,503,363.80 - Step 5: Solve for x
x = 241,346,503,363.80/438,642.20 - Step 6: Final answer
x = 550,212.69
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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.