Finding the Fourth Proportional to 2,890,197.28, 3,988,420.04 and 1,601,033.68
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Solution
The fourth proportional to 2,890,197.28, 3,988,420.04 and 1,601,033.68 is: 2,209,397.56
Step by Step Solution
- Step 1: Write the proportion equation
2,890,197.28 : 3,988,420.04 = 1,601,033.68 : x - Step 2: Convert to fraction form
2,890,197.28/3,988,420.04 = 1,601,033.68/x - Step 3: Cross multiply
2,890,197.28x = 3,988,420.04 × 1,601,033.68 - Step 4: Simplify right side
2,890,197.28x = 6,385,594,814,026.95 - Step 5: Solve for x
x = 6,385,594,814,026.95/2,890,197.28 - Step 6: Final answer
x = 2,209,397.56
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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.