Finding the Fourth Proportional to 712,034.96, 982,609.68 and 389,765.62
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Solution
The fourth proportional to 712,034.96, 982,609.68 and 389,765.62 is: 537,877.35
Step by Step Solution
- Step 1: Write the proportion equation
712,034.96 : 982,609.68 = 389,765.62 : x - Step 2: Convert to fraction form
712,034.96/982,609.68 = 389,765.62/x - Step 3: Cross multiply
712,034.96x = 982,609.68 × 389,765.62 - Step 4: Simplify right side
712,034.96x = 382,987,473,833.09 - Step 5: Solve for x
x = 382,987,473,833.09/712,034.96 - Step 6: Final answer
x = 537,877.35
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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.