Finding the Fourth Proportional to 821,437.25, 1,232,272.62 and 252,865.65
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Solution
The fourth proportional to 821,437.25, 1,232,272.62 and 252,865.65 is: 379,334.41
Step by Step Solution
- Step 1: Write the proportion equation
821,437.25 : 1,232,272.62 = 252,865.65 : x - Step 2: Convert to fraction form
821,437.25/1,232,272.62 = 252,865.65/x - Step 3: Cross multiply
821,437.25x = 1,232,272.62 × 252,865.65 - Step 4: Simplify right side
821,437.25x = 311,599,417,033.50 - Step 5: Solve for x
x = 311,599,417,033.50/821,437.25 - Step 6: Final answer
x = 379,334.41
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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.