Finding the Fourth Proportional to 2,122,834.18, 2,929,122.66 and 1,205,100.94
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Solution
The fourth proportional to 2,122,834.18, 2,929,122.66 and 1,205,100.94 is: 1,662,818.75
Step by Step Solution
- Step 1: Write the proportion equation
2,122,834.18 : 2,929,122.66 = 1,205,100.94 : x - Step 2: Convert to fraction form
2,122,834.18/2,929,122.66 = 1,205,100.94/x - Step 3: Cross multiply
2,122,834.18x = 2,929,122.66 × 1,205,100.94 - Step 4: Simplify right side
2,122,834.18x = 3,529,888,470,941.30 - Step 5: Solve for x
x = 3,529,888,470,941.30/2,122,834.18 - Step 6: Final answer
x = 1,662,818.75
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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.