Finding the Third Proportional to 639,257.25 and 1,378,143.75
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Solution
The third proportional to 639,257.25 and 1,378,143.75 is: 2,971,073.38
Step by Step Solution
- Step 1: Write the proportion equation
639,257.25 : 1,378,143.75 = 1,378,143.75 : x - Step 2: Convert to fraction form
639,257.25/1,378,143.75 = 1,378,143.75/x - Step 3: Cross multiply
639,257.25x = 1,378,143.75 × 1,378,143.75 - Step 4: Simplify right side
639,257.25x = 1,899,280,195,664.06 - Step 5: Solve for x
x = 1,899,280,195,664.06/639,257.25 - Step 6: Final answer
x = 2,971,073.38
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These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.