Finding the Fourth Proportional to 2,919,909.85, 4,029,817.97 and 1,758,942.20
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Solution
The fourth proportional to 2,919,909.85, 4,029,817.97 and 1,758,942.20 is: 2,427,546.49
Step by Step Solution
- Step 1: Write the proportion equation
2,919,909.85 : 4,029,817.97 = 1,758,942.20 : x - Step 2: Convert to fraction form
2,919,909.85/4,029,817.97 = 1,758,942.20/x - Step 3: Cross multiply
2,919,909.85x = 4,029,817.97 × 1,758,942.20 - Step 4: Simplify right side
2,919,909.85x = 7,088,216,900,223.24 - Step 5: Solve for x
x = 7,088,216,900,223.24/2,919,909.85 - Step 6: Final answer
x = 2,427,546.49
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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.