Finding the Fourth Proportional to 716,505.39, 988,792.76 and 394,216.42
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Solution
The fourth proportional to 716,505.39, 988,792.76 and 394,216.42 is: 544,027.08
Step by Step Solution
- Step 1: Write the proportion equation
716,505.39 : 988,792.76 = 394,216.42 : x - Step 2: Convert to fraction form
716,505.39/988,792.76 = 394,216.42/x - Step 3: Cross multiply
716,505.39x = 988,792.76 × 394,216.42 - Step 4: Simplify right side
716,505.39x = 389,798,339,497.14 - Step 5: Solve for x
x = 389,798,339,497.14/716,505.39 - Step 6: Final answer
x = 544,027.08
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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.