Finding the Fourth Proportional to 475,871.40, 656,757.42 and 284,884.68
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Solution
The fourth proportional to 475,871.40, 656,757.42 and 284,884.68 is: 393,173.72
Step by Step Solution
- Step 1: Write the proportion equation
475,871.40 : 656,757.42 = 284,884.68 : x - Step 2: Convert to fraction form
475,871.40/656,757.42 = 284,884.68/x - Step 3: Cross multiply
475,871.40x = 656,757.42 × 284,884.68 - Step 4: Simplify right side
475,871.40x = 187,100,127,434.33 - Step 5: Solve for x
x = 187,100,127,434.33/475,871.40 - Step 6: Final answer
x = 393,173.72
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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.