Finding the Fourth Proportional to 861,860.18, 1,292,790.28 and 270,884.18
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Solution
The fourth proportional to 861,860.18, 1,292,790.28 and 270,884.18 is: 406,326.27
Step by Step Solution
- Step 1: Write the proportion equation
861,860.18 : 1,292,790.28 = 270,884.18 : x - Step 2: Convert to fraction form
861,860.18/1,292,790.28 = 270,884.18/x - Step 3: Cross multiply
861,860.18x = 1,292,790.28 × 270,884.18 - Step 4: Simplify right side
861,860.18x = 350,196,434,909.77 - Step 5: Solve for x
x = 350,196,434,909.77/861,860.18 - Step 6: Final answer
x = 406,326.27
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.