Finding the Fourth Proportional to 1,996,742.70, 2,995,114.05 and 1,677,878.10
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Solution
The fourth proportional to 1,996,742.70, 2,995,114.05 and 1,677,878.10 is: 2,516,817.15
Step by Step Solution
- Step 1: Write the proportion equation
1,996,742.70 : 2,995,114.05 = 1,677,878.10 : x - Step 2: Convert to fraction form
1,996,742.70/2,995,114.05 = 1,677,878.10/x - Step 3: Cross multiply
1,996,742.70x = 2,995,114.05 × 1,677,878.10 - Step 4: Simplify right side
1,996,742.70x = 5,025,436,271,497.31 - Step 5: Solve for x
x = 5,025,436,271,497.31/1,996,742.70 - Step 6: Final answer
x = 2,516,817.15
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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.