Finding the Fourth Proportional to 860,912.74, 1,291,369.10 and 313,846.18
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Solution
The fourth proportional to 860,912.74, 1,291,369.10 and 313,846.18 is: 470,769.27
Step by Step Solution
- Step 1: Write the proportion equation
860,912.74 : 1,291,369.10 = 313,846.18 : x - Step 2: Convert to fraction form
860,912.74/1,291,369.10 = 313,846.18/x - Step 3: Cross multiply
860,912.74x = 1,291,369.10 × 313,846.18 - Step 4: Simplify right side
860,912.74x = 405,291,259,005.04 - Step 5: Solve for x
x = 405,291,259,005.04/860,912.74 - Step 6: Final answer
x = 470,769.27
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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.