Finding the Fourth Proportional to 3,207,447.94, 4,426,277.79 and 1,918,288.12
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Solution
The fourth proportional to 3,207,447.94, 4,426,277.79 and 1,918,288.12 is: 2,647,237.39
Step by Step Solution
- Step 1: Write the proportion equation
3,207,447.94 : 4,426,277.79 = 1,918,288.12 : x - Step 2: Convert to fraction form
3,207,447.94/4,426,277.79 = 1,918,288.12/x - Step 3: Cross multiply
3,207,447.94x = 4,426,277.79 × 1,918,288.12 - Step 4: Simplify right side
3,207,447.94x = 8,490,876,100,376.86 - Step 5: Solve for x
x = 8,490,876,100,376.86/3,207,447.94 - Step 6: Final answer
x = 2,647,237.39
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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.