Finding the Fourth Proportional to 4,262,905.20, 6,394,357.80 and 2,919,212.40
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Solution
The fourth proportional to 4,262,905.20, 6,394,357.80 and 2,919,212.40 is: 4,378,818.60
Step by Step Solution
- Step 1: Write the proportion equation
4,262,905.20 : 6,394,357.80 = 2,919,212.40 : x - Step 2: Convert to fraction form
4,262,905.20/6,394,357.80 = 2,919,212.40/x - Step 3: Cross multiply
4,262,905.20x = 6,394,357.80 × 2,919,212.40 - Step 4: Simplify right side
4,262,905.20x = 18,666,488,579,796.72 - Step 5: Solve for x
x = 18,666,488,579,796.72/4,262,905.20 - Step 6: Final answer
x = 4,378,818.60
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1.5x scale
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.