Finding the Fourth Proportional to 636,977.24, 878,928.12 and 364,992.80
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Solution
The fourth proportional to 636,977.24, 878,928.12 and 364,992.80 is: 503,632.49
Step by Step Solution
- Step 1: Write the proportion equation
636,977.24 : 878,928.12 = 364,992.80 : x - Step 2: Convert to fraction form
636,977.24/878,928.12 = 364,992.80/x - Step 3: Cross multiply
636,977.24x = 878,928.12 × 364,992.80 - Step 4: Simplify right side
636,977.24x = 320,802,435,517.54 - Step 5: Solve for x
x = 320,802,435,517.54/636,977.24 - Step 6: Final answer
x = 503,632.49
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.