Finding the Fourth Proportional to 716,346.24, 988,560.08 and 394,080.84
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Solution
The fourth proportional to 716,346.24, 988,560.08 and 394,080.84 is: 543,832.81
Step by Step Solution
- Step 1: Write the proportion equation
716,346.24 : 988,560.08 = 394,080.84 : x - Step 2: Convert to fraction form
716,346.24/988,560.08 = 394,080.84/x - Step 3: Cross multiply
716,346.24x = 988,560.08 × 394,080.84 - Step 4: Simplify right side
716,346.24x = 389,572,586,716.87 - Step 5: Solve for x
x = 389,572,586,716.87/716,346.24 - Step 6: Final answer
x = 543,832.81
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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.