Finding the Third Proportional to 328,392 and 709,172
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Solution
The third proportional to 328,392 and 709,172 is: 1,531,477.40
Step by Step Solution
- Step 1: Write the proportion equation
328,392 : 709,172 = 709,172 : x - Step 2: Convert to fraction form
328,392/709,172 = 709,172/x - Step 3: Cross multiply
328,392x = 709,172 × 709,172 - Step 4: Simplify right side
328,392x = 502,924,925,584 - Step 5: Solve for x
x = 502,924,925,584/328,392 - Step 6: Final answer
x = 1,531,477.40
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Why These Related Problems?
These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.