Finding the Fourth Proportional to 1,259,596.64, 1,737,933.12 and 769,441.28
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Solution
The fourth proportional to 1,259,596.64, 1,737,933.12 and 769,441.28 is: 1,061,639.45
Step by Step Solution
- Step 1: Write the proportion equation
1,259,596.64 : 1,737,933.12 = 769,441.28 : x - Step 2: Convert to fraction form
1,259,596.64/1,737,933.12 = 769,441.28/x - Step 3: Cross multiply
1,259,596.64x = 1,737,933.12 × 769,441.28 - Step 4: Simplify right side
1,259,596.64x = 1,337,237,484,407.19 - Step 5: Solve for x
x = 1,337,237,484,407.19/1,259,596.64 - Step 6: Final answer
x = 1,061,639.45
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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.