Finding the Fourth Proportional to 859,101.15, 1,288,323.68 and 259,863.15
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Solution
The fourth proportional to 859,101.15, 1,288,323.68 and 259,863.15 is: 389,695.50
Step by Step Solution
- Step 1: Write the proportion equation
859,101.15 : 1,288,323.68 = 259,863.15 : x - Step 2: Convert to fraction form
859,101.15/1,288,323.68 = 259,863.15/x - Step 3: Cross multiply
859,101.15x = 1,288,323.68 × 259,863.15 - Step 4: Simplify right side
859,101.15x = 334,787,848,405.08 - Step 5: Solve for x
x = 334,787,848,405.08/859,101.15 - Step 6: Final answer
x = 389,695.50
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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.