Finding the Fourth Proportional to 639,220.87, 957,917.62 and 469,409.23
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Solution
The fourth proportional to 639,220.87, 957,917.62 and 469,409.23 is: 703,442.88
Step by Step Solution
- Step 1: Write the proportion equation
639,220.87 : 957,917.62 = 469,409.23 : x - Step 2: Convert to fraction form
639,220.87/957,917.62 = 469,409.23/x - Step 3: Cross multiply
639,220.87x = 957,917.62 × 469,409.23 - Step 4: Simplify right side
639,220.87x = 449,655,372,407.63 - Step 5: Solve for x
x = 449,655,372,407.63/639,220.87 - Step 6: Final answer
x = 703,442.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.