Finding the Fourth Proportional to 1,639,721.06, 2,262,818.16 and 914,615.74
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Solution
The fourth proportional to 1,639,721.06, 2,262,818.16 and 914,615.74 is: 1,262,171.45
Step by Step Solution
- Step 1: Write the proportion equation
1,639,721.06 : 2,262,818.16 = 914,615.74 : x - Step 2: Convert to fraction form
1,639,721.06/2,262,818.16 = 914,615.74/x - Step 3: Cross multiply
1,639,721.06x = 2,262,818.16 × 914,615.74 - Step 4: Simplify right side
1,639,721.06x = 2,069,609,100,236.79 - Step 5: Solve for x
x = 2,069,609,100,236.79/1,639,721.06 - Step 6: Final answer
x = 1,262,171.45
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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.