Finding the Fourth Proportional to 2,138,270.87, 2,950,887.60 and 1,171,400.91
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Solution
The fourth proportional to 2,138,270.87, 2,950,887.60 and 1,171,400.91 is: 1,616,573.69
Step by Step Solution
- Step 1: Write the proportion equation
2,138,270.87 : 2,950,887.60 = 1,171,400.91 : x - Step 2: Convert to fraction form
2,138,270.87/2,950,887.60 = 1,171,400.91/x - Step 3: Cross multiply
2,138,270.87x = 2,950,887.60 × 1,171,400.91 - Step 4: Simplify right side
2,138,270.87x = 3,456,672,419,947.72 - Step 5: Solve for x
x = 3,456,672,419,947.72/2,138,270.87 - Step 6: Final answer
x = 1,616,573.69
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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.