Finding the Fourth Proportional to 716,491.04, 988,757.52 and 394,194.24
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Solution
The fourth proportional to 716,491.04, 988,757.52 and 394,194.24 is: 543,987.99
Step by Step Solution
- Step 1: Write the proportion equation
716,491.04 : 988,757.52 = 394,194.24 : x - Step 2: Convert to fraction form
716,491.04/988,757.52 = 394,194.24/x - Step 3: Cross multiply
716,491.04x = 988,757.52 × 394,194.24 - Step 4: Simplify right side
716,491.04x = 389,762,519,140.69 - Step 5: Solve for x
x = 389,762,519,140.69/716,491.04 - Step 6: Final answer
x = 543,987.99
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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.