Finding the Fourth Proportional to 1,224,138.17, 1,689,320.00 and 680,324.96
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Solution
The fourth proportional to 1,224,138.17, 1,689,320.00 and 680,324.96 is: 938,853.62
Step by Step Solution
- Step 1: Write the proportion equation
1,224,138.17 : 1,689,320.00 = 680,324.96 : x - Step 2: Convert to fraction form
1,224,138.17/1,689,320.00 = 680,324.96/x - Step 3: Cross multiply
1,224,138.17x = 1,689,320.00 × 680,324.96 - Step 4: Simplify right side
1,224,138.17x = 1,149,286,558,025.58 - Step 5: Solve for x
x = 1,149,286,558,025.58/1,224,138.17 - Step 6: Final answer
x = 938,853.62
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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.