Finding the Fourth Proportional to 2,840,417.20, 3,919,780.11 and 1,616,722.69
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Solution
The fourth proportional to 2,840,417.20, 3,919,780.11 and 1,616,722.69 is: 2,231,079.80
Step by Step Solution
- Step 1: Write the proportion equation
2,840,417.20 : 3,919,780.11 = 1,616,722.69 : x - Step 2: Convert to fraction form
2,840,417.20/3,919,780.11 = 1,616,722.69/x - Step 3: Cross multiply
2,840,417.20x = 3,919,780.11 × 1,616,722.69 - Step 4: Simplify right side
2,840,417.20x = 6,337,197,443,647.70 - Step 5: Solve for x
x = 6,337,197,443,647.70/2,840,417.20 - Step 6: Final answer
x = 2,231,079.80
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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.