Finding the Fourth Proportional to 1,224,105.24, 1,689,157.68 and 680,206.56
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Solution
The fourth proportional to 1,224,105.24, 1,689,157.68 and 680,206.56 is: 938,625.29
Step by Step Solution
- Step 1: Write the proportion equation
1,224,105.24 : 1,689,157.68 = 680,206.56 : x - Step 2: Convert to fraction form
1,224,105.24/1,689,157.68 = 680,206.56/x - Step 3: Cross multiply
1,224,105.24x = 1,689,157.68 × 680,206.56 - Step 4: Simplify right side
1,224,105.24x = 1,148,976,134,810.38 - Step 5: Solve for x
x = 1,148,976,134,810.38/1,224,105.24 - Step 6: Final answer
x = 938,625.29
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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.