Finding the Fourth Proportional to 2,164,953.80, 2,987,589.13 and 1,184,888.09
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Solution
The fourth proportional to 2,164,953.80, 2,987,589.13 and 1,184,888.09 is: 1,635,119.77
Step by Step Solution
- Step 1: Write the proportion equation
2,164,953.80 : 2,987,589.13 = 1,184,888.09 : x - Step 2: Convert to fraction form
2,164,953.80/2,987,589.13 = 1,184,888.09/x - Step 3: Cross multiply
2,164,953.80x = 2,987,589.13 × 1,184,888.09 - Step 4: Simplify right side
2,164,953.80x = 3,539,958,760,050.30 - Step 5: Solve for x
x = 3,539,958,760,050.30/2,164,953.80 - Step 6: Final answer
x = 1,635,119.77
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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.