Finding the Third Proportional to 391,409.50 and 606,053.75
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Solution
The third proportional to 391,409.50 and 606,053.75 is: 938,406.32
Step by Step Solution
- Step 1: Write the proportion equation
391,409.50 : 606,053.75 = 606,053.75 : x - Step 2: Convert to fraction form
391,409.50/606,053.75 = 606,053.75/x - Step 3: Cross multiply
391,409.50x = 606,053.75 × 606,053.75 - Step 4: Simplify right side
391,409.50x = 367,301,147,889.06 - Step 5: Solve for x
x = 367,301,147,889.06/391,409.50 - Step 6: Final answer
x = 938,406.32
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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.