Finding the Fourth Proportional to 1,490,490.24, 2,236,399.80 and 543,639.60
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Solution
The fourth proportional to 1,490,490.24, 2,236,399.80 and 543,639.60 is: 815,701.75
Step by Step Solution
- Step 1: Write the proportion equation
1,490,490.24 : 2,236,399.80 = 543,639.60 : x - Step 2: Convert to fraction form
1,490,490.24/2,236,399.80 = 543,639.60/x - Step 3: Cross multiply
1,490,490.24x = 2,236,399.80 × 543,639.60 - Step 4: Simplify right side
1,490,490.24x = 1,215,795,492,712.08 - Step 5: Solve for x
x = 1,215,795,492,712.08/1,490,490.24 - Step 6: Final answer
x = 815,701.75
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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.