Finding the Fourth Proportional to 2,221,323.60, 3,331,985.40 and 1,273,915.20
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Solution
The fourth proportional to 2,221,323.60, 3,331,985.40 and 1,273,915.20 is: 1,910,872.80
Step by Step Solution
- Step 1: Write the proportion equation
2,221,323.60 : 3,331,985.40 = 1,273,915.20 : x - Step 2: Convert to fraction form
2,221,323.60/3,331,985.40 = 1,273,915.20/x - Step 3: Cross multiply
2,221,323.60x = 3,331,985.40 × 1,273,915.20 - Step 4: Simplify right side
2,221,323.60x = 4,244,666,847,238.08 - Step 5: Solve for x
x = 4,244,666,847,238.08/2,221,323.60 - Step 6: Final answer
x = 1,910,872.80
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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.