Finding the Fourth Proportional to 1,492,299.28, 2,059,366.20 and 813,235.60
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Solution
The fourth proportional to 1,492,299.28, 2,059,366.20 and 813,235.60 is: 1,122,261.42
Step by Step Solution
- Step 1: Write the proportion equation
1,492,299.28 : 2,059,366.20 = 813,235.60 : x - Step 2: Convert to fraction form
1,492,299.28/2,059,366.20 = 813,235.60/x - Step 3: Cross multiply
1,492,299.28x = 2,059,366.20 × 813,235.60 - Step 4: Simplify right side
1,492,299.28x = 1,674,749,907,276.72 - Step 5: Solve for x
x = 1,674,749,907,276.72/1,492,299.28 - Step 6: Final answer
x = 1,122,261.42
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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.