Finding the Third Proportional to 278,340 and 620,428
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Solution
The third proportional to 278,340 and 620,428 is: 1,382,952.16
Step by Step Solution
- Step 1: Write the proportion equation
278,340 : 620,428 = 620,428 : x - Step 2: Convert to fraction form
278,340/620,428 = 620,428/x - Step 3: Cross multiply
278,340x = 620,428 × 620,428 - Step 4: Simplify right side
278,340x = 384,930,903,184 - Step 5: Solve for x
x = 384,930,903,184/278,340 - Step 6: Final answer
x = 1,382,952.16
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Why These Related Problems?
These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.