Finding the Fourth Proportional to 312,578.49, 469,439.73 and 286,227.84
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Solution
The fourth proportional to 312,578.49, 469,439.73 and 286,227.84 is: 429,865.54
Step by Step Solution
- Step 1: Write the proportion equation
312,578.49 : 469,439.73 = 286,227.84 : x - Step 2: Convert to fraction form
312,578.49/469,439.73 = 286,227.84/x - Step 3: Cross multiply
312,578.49x = 469,439.73 × 286,227.84 - Step 4: Simplify right side
312,578.49x = 134,366,719,928.08 - Step 5: Solve for x
x = 134,366,719,928.08/312,578.49 - Step 6: Final answer
x = 429,865.54
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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.