Finding the Fourth Proportional to 716,094.58, 988,190.82 and 393,804.68
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Solution
The fourth proportional to 716,094.58, 988,190.82 and 393,804.68 is: 543,439.62
Step by Step Solution
- Step 1: Write the proportion equation
716,094.58 : 988,190.82 = 393,804.68 : x - Step 2: Convert to fraction form
716,094.58/988,190.82 = 393,804.68/x - Step 3: Cross multiply
716,094.58x = 988,190.82 × 393,804.68 - Step 4: Simplify right side
716,094.58x = 389,154,169,649.04 - Step 5: Solve for x
x = 389,154,169,649.04/716,094.58 - Step 6: Final answer
x = 543,439.62
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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.