Finding the Fourth Proportional to 716,506.14, 988,793.79 and 394,217.17
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Solution
The fourth proportional to 716,506.14, 988,793.79 and 394,217.17 is: 544,028.12
Step by Step Solution
- Step 1: Write the proportion equation
716,506.14 : 988,793.79 = 394,217.17 : x - Step 2: Convert to fraction form
716,506.14/988,793.79 = 394,217.17/x - Step 3: Cross multiply
716,506.14x = 988,793.79 × 394,217.17 - Step 4: Simplify right side
716,506.14x = 389,799,489,607.37 - Step 5: Solve for x
x = 389,799,489,607.37/716,506.14 - Step 6: Final answer
x = 544,028.12
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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.