Finding the Fourth Proportional to 1,220,753.82, 1,684,660.44 and 676,912.53
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Solution
The fourth proportional to 1,220,753.82, 1,684,660.44 and 676,912.53 is: 934,150.47
Step by Step Solution
- Step 1: Write the proportion equation
1,220,753.82 : 1,684,660.44 = 676,912.53 : x - Step 2: Convert to fraction form
1,220,753.82/1,684,660.44 = 676,912.53/x - Step 3: Cross multiply
1,220,753.82x = 1,684,660.44 × 676,912.53 - Step 4: Simplify right side
1,220,753.82x = 1,140,367,760,631.31 - Step 5: Solve for x
x = 1,140,367,760,631.31/1,220,753.82 - Step 6: Final answer
x = 934,150.47
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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.