Finding the Fourth Proportional to 2,138,218.58, 2,950,815.12 and 1,171,348.64
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Solution
The fourth proportional to 2,138,218.58, 2,950,815.12 and 1,171,348.64 is: 1,616,501.38
Step by Step Solution
- Step 1: Write the proportion equation
2,138,218.58 : 2,950,815.12 = 1,171,348.64 : x - Step 2: Convert to fraction form
2,138,218.58/2,950,815.12 = 1,171,348.64/x - Step 3: Cross multiply
2,138,218.58x = 2,950,815.12 × 1,171,348.64 - Step 4: Simplify right side
2,138,218.58x = 3,456,433,277,703.44 - Step 5: Solve for x
x = 3,456,433,277,703.44/2,138,218.58 - Step 6: Final answer
x = 1,616,501.38
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1.5x scale
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.