Finding the Fourth Proportional to 1,647,155.76, 2,273,113.44 and 921,985.44
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Solution
The fourth proportional to 1,647,155.76, 2,273,113.44 and 921,985.44 is: 1,272,361.45
Step by Step Solution
- Step 1: Write the proportion equation
1,647,155.76 : 2,273,113.44 = 921,985.44 : x - Step 2: Convert to fraction form
1,647,155.76/2,273,113.44 = 921,985.44/x - Step 3: Cross multiply
1,647,155.76x = 2,273,113.44 × 921,985.44 - Step 4: Simplify right side
1,647,155.76x = 2,095,777,495,148.31 - Step 5: Solve for x
x = 2,095,777,495,148.31/1,647,155.76 - Step 6: Final answer
x = 1,272,361.45
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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.