Finding the Fourth Proportional to 2,163,321.92, 2,985,121.68 and 1,196,320.52
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Solution
The fourth proportional to 2,163,321.92, 2,985,121.68 and 1,196,320.52 is: 1,650,777.12
Step by Step Solution
- Step 1: Write the proportion equation
2,163,321.92 : 2,985,121.68 = 1,196,320.52 : x - Step 2: Convert to fraction form
2,163,321.92/2,985,121.68 = 1,196,320.52/x - Step 3: Cross multiply
2,163,321.92x = 2,985,121.68 × 1,196,320.52 - Step 4: Simplify right side
2,163,321.92x = 3,571,162,320,480.87 - Step 5: Solve for x
x = 3,571,162,320,480.87/2,163,321.92 - Step 6: Final answer
x = 1,650,777.12
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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.