Finding the Third Proportional to 319,981.50 and 687,448.50
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Solution
The third proportional to 319,981.50 and 687,448.50 is: 1,476,914.88
Step by Step Solution
- Step 1: Write the proportion equation
319,981.50 : 687,448.50 = 687,448.50 : x - Step 2: Convert to fraction form
319,981.50/687,448.50 = 687,448.50/x - Step 3: Cross multiply
319,981.50x = 687,448.50 × 687,448.50 - Step 4: Simplify right side
319,981.50x = 472,585,440,152.25 - Step 5: Solve for x
x = 472,585,440,152.25/319,981.50 - Step 6: Final answer
x = 1,476,914.88
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Why These Related Problems?
These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.