Finding the Fourth Proportional to 1,620,911.17, 2,429,193.39 and 1,261,515.97
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Solution
The fourth proportional to 1,620,911.17, 2,429,193.39 and 1,261,515.97 is: 1,890,582.48
Step by Step Solution
- Step 1: Write the proportion equation
1,620,911.17 : 2,429,193.39 = 1,261,515.97 : x - Step 2: Convert to fraction form
1,620,911.17/2,429,193.39 = 1,261,515.97/x - Step 3: Cross multiply
1,620,911.17x = 2,429,193.39 × 1,261,515.97 - Step 4: Simplify right side
1,620,911.17x = 3,064,466,255,703.44 - Step 5: Solve for x
x = 3,064,466,255,703.44/1,620,911.17 - Step 6: Final answer
x = 1,890,582.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.