Finding the Fourth Proportional to 2,205,989.55, 3,043,793.30 and 1,287,801.99
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Solution
The fourth proportional to 2,205,989.55, 3,043,793.30 and 1,287,801.99 is: 1,776,891.04
Step by Step Solution
- Step 1: Write the proportion equation
2,205,989.55 : 3,043,793.30 = 1,287,801.99 : x - Step 2: Convert to fraction form
2,205,989.55/3,043,793.30 = 1,287,801.99/x - Step 3: Cross multiply
2,205,989.55x = 3,043,793.30 × 1,287,801.99 - Step 4: Simplify right side
2,205,989.55x = 3,919,803,062,449.66 - Step 5: Solve for x
x = 3,919,803,062,449.66/2,205,989.55 - Step 6: Final answer
x = 1,776,891.04
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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.