Finding the Fourth Proportional to 831,995.34, 1,247,996.66 and 263,379.23
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Solution
The fourth proportional to 831,995.34, 1,247,996.66 and 263,379.23 is: 395,069.99
Step by Step Solution
- Step 1: Write the proportion equation
831,995.34 : 1,247,996.66 = 263,379.23 : x - Step 2: Convert to fraction form
831,995.34/1,247,996.66 = 263,379.23/x - Step 3: Cross multiply
831,995.34x = 1,247,996.66 × 263,379.23 - Step 4: Simplify right side
831,995.34x = 328,696,391,796.49 - Step 5: Solve for x
x = 328,696,391,796.49/831,995.34 - Step 6: Final answer
x = 395,069.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.