Finding the Third Proportional to 309,911.25 and 478,536.75
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Solution
The third proportional to 309,911.25 and 478,536.75 is: 738,912.90
Step by Step Solution
- Step 1: Write the proportion equation
309,911.25 : 478,536.75 = 478,536.75 : x - Step 2: Convert to fraction form
309,911.25/478,536.75 = 478,536.75/x - Step 3: Cross multiply
309,911.25x = 478,536.75 × 478,536.75 - Step 4: Simplify right side
309,911.25x = 228,997,421,100.56 - Step 5: Solve for x
x = 228,997,421,100.56/309,911.25 - Step 6: Final answer
x = 738,912.90
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These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.