Finding the Fourth Proportional to 1,288,391.87, 1,777,850.84 and 752,158.91
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Solution
The fourth proportional to 1,288,391.87, 1,777,850.84 and 752,158.91 is: 1,037,903.43
Step by Step Solution
- Step 1: Write the proportion equation
1,288,391.87 : 1,777,850.84 = 752,158.91 : x - Step 2: Convert to fraction form
1,288,391.87/1,777,850.84 = 752,158.91/x - Step 3: Cross multiply
1,288,391.87x = 1,777,850.84 × 752,158.91 - Step 4: Simplify right side
1,288,391.87x = 1,337,226,346,196.19 - Step 5: Solve for x
x = 1,337,226,346,196.19/1,288,391.87 - Step 6: Final answer
x = 1,037,903.43
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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.