Finding the Fourth Proportional to 3,129,855.36, 4,695,101.28 and 1,080,249.12
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Solution
The fourth proportional to 3,129,855.36, 4,695,101.28 and 1,080,249.12 is: 1,620,483.52
Step by Step Solution
- Step 1: Write the proportion equation
3,129,855.36 : 4,695,101.28 = 1,080,249.12 : x - Step 2: Convert to fraction form
3,129,855.36/4,695,101.28 = 1,080,249.12/x - Step 3: Cross multiply
3,129,855.36x = 4,695,101.28 × 1,080,249.12 - Step 4: Simplify right side
3,129,855.36x = 5,071,879,026,030.87 - Step 5: Solve for x
x = 5,071,879,026,030.87/3,129,855.36 - Step 6: Final answer
x = 1,620,483.52
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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.