Finding the Fourth Proportional to 1,542,518.69, 2,313,993.49 and 643,754.63
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Solution
The fourth proportional to 1,542,518.69, 2,313,993.49 and 643,754.63 is: 965,721.87
Step by Step Solution
- Step 1: Write the proportion equation
1,542,518.69 : 2,313,993.49 = 643,754.63 : x - Step 2: Convert to fraction form
1,542,518.69/2,313,993.49 = 643,754.63/x - Step 3: Cross multiply
1,542,518.69x = 2,313,993.49 × 643,754.63 - Step 4: Simplify right side
1,542,518.69x = 1,489,644,027,152.96 - Step 5: Solve for x
x = 1,489,644,027,152.96/1,542,518.69 - Step 6: Final answer
x = 965,721.87
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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.