Finding the Third Proportional to 638,653.50 and 887,991.75
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Solution
The third proportional to 638,653.50 and 887,991.75 is: 1,234,674.75
Step by Step Solution
- Step 1: Write the proportion equation
638,653.50 : 887,991.75 = 887,991.75 : x - Step 2: Convert to fraction form
638,653.50/887,991.75 = 887,991.75/x - Step 3: Cross multiply
638,653.50x = 887,991.75 × 887,991.75 - Step 4: Simplify right side
638,653.50x = 788,529,348,068.06 - Step 5: Solve for x
x = 788,529,348,068.06/638,653.50 - Step 6: Final answer
x = 1,234,674.75
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.