Finding the Fourth Proportional to 2,164,921.98, 2,987,518.77 and 1,198,093.02
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Solution
The fourth proportional to 2,164,921.98, 2,987,518.77 and 1,198,093.02 is: 1,653,327.66
Step by Step Solution
- Step 1: Write the proportion equation
2,164,921.98 : 2,987,518.77 = 1,198,093.02 : x - Step 2: Convert to fraction form
2,164,921.98/2,987,518.77 = 1,198,093.02/x - Step 3: Cross multiply
2,164,921.98x = 2,987,518.77 × 1,198,093.02 - Step 4: Simplify right side
2,164,921.98x = 3,579,325,385,455.99 - Step 5: Solve for x
x = 3,579,325,385,455.99/2,164,921.98 - Step 6: Final answer
x = 1,653,327.66
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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.