Finding the Fourth Proportional to 866,290.35, 1,299,170.65 and 305,193.63
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Solution
The fourth proportional to 866,290.35, 1,299,170.65 and 305,193.63 is: 457,697.12
Step by Step Solution
- Step 1: Write the proportion equation
866,290.35 : 1,299,170.65 = 305,193.63 : x - Step 2: Convert to fraction form
866,290.35/1,299,170.65 = 305,193.63/x - Step 3: Cross multiply
866,290.35x = 1,299,170.65 × 305,193.63 - Step 4: Simplify right side
866,290.35x = 396,498,599,404.12 - Step 5: Solve for x
x = 396,498,599,404.12/866,290.35 - Step 6: Final answer
x = 457,697.12
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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.