Finding the Fourth Proportional to 1,493,165.80, 2,239,748.70 and 1,115,252.20
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Solution
The fourth proportional to 1,493,165.80, 2,239,748.70 and 1,115,252.20 is: 1,672,878.30
Step by Step Solution
- Step 1: Write the proportion equation
1,493,165.80 : 2,239,748.70 = 1,115,252.20 : x - Step 2: Convert to fraction form
1,493,165.80/2,239,748.70 = 1,115,252.20/x - Step 3: Cross multiply
1,493,165.80x = 2,239,748.70 × 1,115,252.20 - Step 4: Simplify right side
1,493,165.80x = 2,497,884,665,122.14 - Step 5: Solve for x
x = 2,497,884,665,122.14/1,493,165.80 - Step 6: Final answer
x = 1,672,878.30
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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.