Finding the Fourth Proportional to 1,028,272.80, 1,541,837.04 and 318,103.20
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Solution
The fourth proportional to 1,028,272.80, 1,541,837.04 and 318,103.20 is: 476,977.80
Step by Step Solution
- Step 1: Write the proportion equation
1,028,272.80 : 1,541,837.04 = 318,103.20 : x - Step 2: Convert to fraction form
1,028,272.80/1,541,837.04 = 318,103.20/x - Step 3: Cross multiply
1,028,272.80x = 1,541,837.04 × 318,103.20 - Step 4: Simplify right side
1,028,272.80x = 490,463,296,302.53 - Step 5: Solve for x
x = 490,463,296,302.53/1,028,272.80 - Step 6: Final answer
x = 476,977.80
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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.