Finding the Fourth Proportional to 831,012.75, 1,146,888.72 and 482,229.99
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Solution
The fourth proportional to 831,012.75, 1,146,888.72 and 482,229.99 is: 665,530.27
Step by Step Solution
- Step 1: Write the proportion equation
831,012.75 : 1,146,888.72 = 482,229.99 : x - Step 2: Convert to fraction form
831,012.75/1,146,888.72 = 482,229.99/x - Step 3: Cross multiply
831,012.75x = 1,146,888.72 × 482,229.99 - Step 4: Simplify right side
831,012.75x = 553,064,135,976.71 - Step 5: Solve for x
x = 553,064,135,976.71/831,012.75 - Step 6: Final answer
x = 665,530.27
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.