Finding the Fourth Proportional to 930,919.20, 1,396,378.80 and 887,616.60
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Solution
The fourth proportional to 930,919.20, 1,396,378.80 and 887,616.60 is: 1,331,424.90
Step by Step Solution
- Step 1: Write the proportion equation
930,919.20 : 1,396,378.80 = 887,616.60 : x - Step 2: Convert to fraction form
930,919.20/1,396,378.80 = 887,616.60/x - Step 3: Cross multiply
930,919.20x = 1,396,378.80 × 887,616.60 - Step 4: Simplify right side
930,919.20x = 1,239,449,002,768.08 - Step 5: Solve for x
x = 1,239,449,002,768.08/930,919.20 - Step 6: Final answer
x = 1,331,424.90
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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.