Finding the Fourth Proportional to 1,542,855.36, 2,129,044.80 and 854,516.40
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Solution
The fourth proportional to 1,542,855.36, 2,129,044.80 and 854,516.40 is: 1,179,179.69
Step by Step Solution
- Step 1: Write the proportion equation
1,542,855.36 : 2,129,044.80 = 854,516.40 : x - Step 2: Convert to fraction form
1,542,855.36/2,129,044.80 = 854,516.40/x - Step 3: Cross multiply
1,542,855.36x = 2,129,044.80 × 854,516.40 - Step 4: Simplify right side
1,542,855.36x = 1,819,303,697,934.72 - Step 5: Solve for x
x = 1,819,303,697,934.72/1,542,855.36 - Step 6: Final answer
x = 1,179,179.69
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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.