Finding the Fourth Proportional to 386,643.82, 580,389.94 and 307,192.44
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Solution
The fourth proportional to 386,643.82, 580,389.94 and 307,192.44 is: 461,125.70
Step by Step Solution
- Step 1: Write the proportion equation
386,643.82 : 580,389.94 = 307,192.44 : x - Step 2: Convert to fraction form
386,643.82/580,389.94 = 307,192.44/x - Step 3: Cross multiply
386,643.82x = 580,389.94 × 307,192.44 - Step 4: Simplify right side
386,643.82x = 178,291,401,820.05 - Step 5: Solve for x
x = 178,291,401,820.05/386,643.82 - Step 6: Final answer
x = 461,125.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.