Finding the Fourth Proportional to 1,257,743.76, 1,735,639.83 and 684,772.44
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Solution
The fourth proportional to 1,257,743.76, 1,735,639.83 and 684,772.44 is: 944,960.62
Step by Step Solution
- Step 1: Write the proportion equation
1,257,743.76 : 1,735,639.83 = 684,772.44 : x - Step 2: Convert to fraction form
1,257,743.76/1,735,639.83 = 684,772.44/x - Step 3: Cross multiply
1,257,743.76x = 1,735,639.83 × 684,772.44 - Step 4: Simplify right side
1,257,743.76x = 1,188,518,321,350.29 - Step 5: Solve for x
x = 1,188,518,321,350.29/1,257,743.76 - Step 6: Final answer
x = 944,960.62
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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.