Finding the Fourth Proportional to 2,141,679.92, 3,211,486.42 and 1,243,347.80
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Solution
The fourth proportional to 2,141,679.92, 3,211,486.42 and 1,243,347.80 is: 1,864,421.73
Step by Step Solution
- Step 1: Write the proportion equation
2,141,679.92 : 3,211,486.42 = 1,243,347.80 : x - Step 2: Convert to fraction form
2,141,679.92/3,211,486.42 = 1,243,347.80/x - Step 3: Cross multiply
2,141,679.92x = 3,211,486.42 × 1,243,347.80 - Step 4: Simplify right side
2,141,679.92x = 3,992,994,575,036.88 - Step 5: Solve for x
x = 3,992,994,575,036.88/2,141,679.92 - Step 6: Final answer
x = 1,864,421.73
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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.