Finding the Fourth Proportional to 1,288,437.12, 1,777,913.28 and 752,204.16
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Solution
The fourth proportional to 1,288,437.12, 1,777,913.28 and 752,204.16 is: 1,037,965.88
Step by Step Solution
- Step 1: Write the proportion equation
1,288,437.12 : 1,777,913.28 = 752,204.16 : x - Step 2: Convert to fraction form
1,288,437.12/1,777,913.28 = 752,204.16/x - Step 3: Cross multiply
1,288,437.12x = 1,777,913.28 × 752,204.16 - Step 4: Simplify right side
1,288,437.12x = 1,337,353,765,335.24 - Step 5: Solve for x
x = 1,337,353,765,335.24/1,288,437.12 - Step 6: Final answer
x = 1,037,965.88
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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.