Finding the Fourth Proportional to 1,639,079.74, 2,261,920.71 and 913,936.15
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Solution
The fourth proportional to 1,639,079.74, 2,261,920.71 and 913,936.15 is: 1,261,226.68
Step by Step Solution
- Step 1: Write the proportion equation
1,639,079.74 : 2,261,920.71 = 913,936.15 : x - Step 2: Convert to fraction form
1,639,079.74/2,261,920.71 = 913,936.15/x - Step 3: Cross multiply
1,639,079.74x = 2,261,920.71 × 913,936.15 - Step 4: Simplify right side
1,639,079.74x = 2,067,251,105,302.67 - Step 5: Solve for x
x = 2,067,251,105,302.67/1,639,079.74 - Step 6: Final answer
x = 1,261,226.68
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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.