Finding the Third Proportional to 318,731.50 and 686,643.50
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Solution
The third proportional to 318,731.50 and 686,643.50 is: 1,479,236.59
Step by Step Solution
- Step 1: Write the proportion equation
318,731.50 : 686,643.50 = 686,643.50 : x - Step 2: Convert to fraction form
318,731.50/686,643.50 = 686,643.50/x - Step 3: Cross multiply
318,731.50x = 686,643.50 × 686,643.50 - Step 4: Simplify right side
318,731.50x = 471,479,296,092.25 - Step 5: Solve for x
x = 471,479,296,092.25/318,731.50 - Step 6: Final answer
x = 1,479,236.59
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These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.