Finding the Fourth Proportional to 2,160,403.96, 2,981,266.14 and 1,242,563.80
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Solution
The fourth proportional to 2,160,403.96, 2,981,266.14 and 1,242,563.80 is: 1,714,685.52
Step by Step Solution
- Step 1: Write the proportion equation
2,160,403.96 : 2,981,266.14 = 1,242,563.80 : x - Step 2: Convert to fraction form
2,160,403.96/2,981,266.14 = 1,242,563.80/x - Step 3: Cross multiply
2,160,403.96x = 2,981,266.14 × 1,242,563.80 - Step 4: Simplify right side
2,160,403.96x = 3,704,413,383,729.73 - Step 5: Solve for x
x = 3,704,413,383,729.73/2,160,403.96 - Step 6: Final answer
x = 1,714,685.52
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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.