Finding the Third Proportional to 998.63 and 1,312.31
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Solution
The third proportional to 998.63 and 1,312.31 is: 1,724.54
Step by Step Solution
- Step 1: Write the proportion equation
998.63 : 1,312.31 = 1,312.31 : x - Step 2: Convert to fraction form
998.63/1,312.31 = 1,312.31/x - Step 3: Cross multiply
998.63x = 1,312.31 × 1,312.31 - Step 4: Simplify right side
998.63x = 1,722,164.10 - Step 5: Solve for x
x = 1,722,164.10/998.63 - Step 6: Final answer
x = 1,724.54
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Why These Related Problems?
These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.