Finding the Fourth Proportional to 1,490,423.40, 2,236,218.30 and 543,889.80
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Solution
The fourth proportional to 1,490,423.40, 2,236,218.30 and 543,889.80 is: 816,047.52
Step by Step Solution
- Step 1: Write the proportion equation
1,490,423.40 : 2,236,218.30 = 543,889.80 : x - Step 2: Convert to fraction form
1,490,423.40/2,236,218.30 = 543,889.80/x - Step 3: Cross multiply
1,490,423.40x = 2,236,218.30 × 543,889.80 - Step 4: Simplify right side
1,490,423.40x = 1,216,256,323,943.34 - Step 5: Solve for x
x = 1,216,256,323,943.34/1,490,423.40 - Step 6: Final answer
x = 816,047.52
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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.