Finding the Fourth Proportional to 716,096.58, 988,193.58 and 393,806.68
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Solution
The fourth proportional to 716,096.58, 988,193.58 and 393,806.68 is: 543,442.38
Step by Step Solution
- Step 1: Write the proportion equation
716,096.58 : 988,193.58 = 393,806.68 : x - Step 2: Convert to fraction form
716,096.58/988,193.58 = 393,806.68/x - Step 3: Cross multiply
716,096.58x = 988,193.58 × 393,806.68 - Step 4: Simplify right side
716,096.58x = 389,157,232,937.11 - Step 5: Solve for x
x = 389,157,232,937.11/716,096.58 - Step 6: Final answer
x = 543,442.38
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1.5x scale
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.