Finding the Fourth Proportional to 2,163,311.70, 2,985,248.97 and 1,183,057.26
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Solution
The fourth proportional to 2,163,311.70, 2,985,248.97 and 1,183,057.26 is: 1,632,552.75
Step by Step Solution
- Step 1: Write the proportion equation
2,163,311.70 : 2,985,248.97 = 1,183,057.26 : x - Step 2: Convert to fraction form
2,163,311.70/2,985,248.97 = 1,183,057.26/x - Step 3: Cross multiply
2,163,311.70x = 2,985,248.97 × 1,183,057.26 - Step 4: Simplify right side
2,163,311.70x = 3,531,720,466,866.02 - Step 5: Solve for x
x = 3,531,720,466,866.02/2,163,311.70 - Step 6: Final answer
x = 1,632,552.75
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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.