Finding the Fourth Proportional to 2,129,745.36, 2,939,167.44 and 1,162,965.36
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Solution
The fourth proportional to 2,129,745.36, 2,939,167.44 and 1,162,965.36 is: 1,604,957.09
Step by Step Solution
- Step 1: Write the proportion equation
2,129,745.36 : 2,939,167.44 = 1,162,965.36 : x - Step 2: Convert to fraction form
2,129,745.36/2,939,167.44 = 1,162,965.36/x - Step 3: Cross multiply
2,129,745.36x = 2,939,167.44 × 1,162,965.36 - Step 4: Simplify right side
2,129,745.36x = 3,418,149,919,959.88 - Step 5: Solve for x
x = 3,418,149,919,959.88/2,129,745.36 - Step 6: Final answer
x = 1,604,957.09
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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.