Finding the Fourth Proportional to 1,492,147.11, 2,236,336.20 and 638,203.80
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Solution
The fourth proportional to 1,492,147.11, 2,236,336.20 and 638,203.80 is: 956,499.70
Step by Step Solution
- Step 1: Write the proportion equation
1,492,147.11 : 2,236,336.20 = 638,203.80 : x - Step 2: Convert to fraction form
1,492,147.11/2,236,336.20 = 638,203.80/x - Step 3: Cross multiply
1,492,147.11x = 2,236,336.20 × 638,203.80 - Step 4: Simplify right side
1,492,147.11x = 1,427,238,260,917.56 - Step 5: Solve for x
x = 1,427,238,260,917.56/1,492,147.11 - Step 6: Final answer
x = 956,499.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.