Finding the Fourth Proportional to 2,216,608.68, 3,318,916.20 and 1,149,407.28
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Solution
The fourth proportional to 2,216,608.68, 3,318,916.20 and 1,149,407.28 is: 1,721,001.31
Step by Step Solution
- Step 1: Write the proportion equation
2,216,608.68 : 3,318,916.20 = 1,149,407.28 : x - Step 2: Convert to fraction form
2,216,608.68/3,318,916.20 = 1,149,407.28/x - Step 3: Cross multiply
2,216,608.68x = 3,318,916.20 × 1,149,407.28 - Step 4: Simplify right side
2,216,608.68x = 3,814,786,441,989.94 - Step 5: Solve for x
x = 3,814,786,441,989.94/2,216,608.68 - Step 6: Final answer
x = 1,721,001.31
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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.