Finding the Third Proportional to 411,982.88 and 636,639.75
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Solution
The third proportional to 411,982.88 and 636,639.75 is: 983,803.44
Step by Step Solution
- Step 1: Write the proportion equation
411,982.88 : 636,639.75 = 636,639.75 : x - Step 2: Convert to fraction form
411,982.88/636,639.75 = 636,639.75/x - Step 3: Cross multiply
411,982.88x = 636,639.75 × 636,639.75 - Step 4: Simplify right side
411,982.88x = 405,310,171,280.06 - Step 5: Solve for x
x = 405,310,171,280.06/411,982.88 - Step 6: Final answer
x = 983,803.44
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Why These Related Problems?
These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.