Finding the Fourth Proportional to 1,231,877.54, 1,699,823.05 and 687,943.99
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Solution
The fourth proportional to 1,231,877.54, 1,699,823.05 and 687,943.99 is: 949,268.91
Step by Step Solution
- Step 1: Write the proportion equation
1,231,877.54 : 1,699,823.05 = 687,943.99 : x - Step 2: Convert to fraction form
1,231,877.54/1,699,823.05 = 687,943.99/x - Step 3: Cross multiply
1,231,877.54x = 1,699,823.05 × 687,943.99 - Step 4: Simplify right side
1,231,877.54x = 1,169,383,051,310.97 - Step 5: Solve for x
x = 1,169,383,051,310.97/1,231,877.54 - Step 6: Final answer
x = 949,268.91
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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.