Finding the Fourth Proportional to 2,037,745.20, 2,812,117.47 and 1,120,059.18
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Solution
The fourth proportional to 2,037,745.20, 2,812,117.47 and 1,120,059.18 is: 1,545,697.66
Step by Step Solution
- Step 1: Write the proportion equation
2,037,745.20 : 2,812,117.47 = 1,120,059.18 : x - Step 2: Convert to fraction form
2,037,745.20/2,812,117.47 = 1,120,059.18/x - Step 3: Cross multiply
2,037,745.20x = 2,812,117.47 × 1,120,059.18 - Step 4: Simplify right side
2,037,745.20x = 3,149,737,987,511.87 - Step 5: Solve for x
x = 3,149,737,987,511.87/2,037,745.20 - Step 6: Final answer
x = 1,545,697.66
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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.