Finding the Fourth Proportional to 3,612,447.94, 5,421,920.55 and 1,930,988.74
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Solution
The fourth proportional to 3,612,447.94, 5,421,920.55 and 1,930,988.74 is: 2,898,219.63
Step by Step Solution
- Step 1: Write the proportion equation
3,612,447.94 : 5,421,920.55 = 1,930,988.74 : x - Step 2: Convert to fraction form
3,612,447.94/5,421,920.55 = 1,930,988.74/x - Step 3: Cross multiply
3,612,447.94x = 5,421,920.55 × 1,930,988.74 - Step 4: Simplify right side
3,612,447.94x = 10,469,667,531,224.61 - Step 5: Solve for x
x = 10,469,667,531,224.61/3,612,447.94 - Step 6: Final answer
x = 2,898,219.63
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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.