Finding the Fourth Proportional to 1,965,627.84, 2,712,678.07 and 1,180,933.76
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Solution
The fourth proportional to 1,965,627.84, 2,712,678.07 and 1,180,933.76 is: 1,629,755.66
Step by Step Solution
- Step 1: Write the proportion equation
1,965,627.84 : 2,712,678.07 = 1,180,933.76 : x - Step 2: Convert to fraction form
1,965,627.84/2,712,678.07 = 1,180,933.76/x - Step 3: Cross multiply
1,965,627.84x = 2,712,678.07 × 1,180,933.76 - Step 4: Simplify right side
1,965,627.84x = 3,203,493,099,311.25 - Step 5: Solve for x
x = 3,203,493,099,311.25/1,965,627.84 - Step 6: Final answer
x = 1,629,755.66
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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.