Finding the Fourth Proportional to 1,620,684.76, 2,236,854.42 and 1,068,431.48
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Solution
The fourth proportional to 1,620,684.76, 2,236,854.42 and 1,068,431.48 is: 1,474,639.45
Step by Step Solution
- Step 1: Write the proportion equation
1,620,684.76 : 2,236,854.42 = 1,068,431.48 : x - Step 2: Convert to fraction form
1,620,684.76/2,236,854.42 = 1,068,431.48/x - Step 3: Cross multiply
1,620,684.76x = 2,236,854.42 × 1,068,431.48 - Step 4: Simplify right side
1,620,684.76x = 2,389,925,678,505.14 - Step 5: Solve for x
x = 2,389,925,678,505.14/1,620,684.76 - Step 6: Final answer
x = 1,474,639.45
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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.