Finding the Fourth Proportional to 2,629,348.64, 3,933,645.76 and 1,991,489.84
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Solution
The fourth proportional to 2,629,348.64, 3,933,645.76 and 1,991,489.84 is: 2,979,374.99
Step by Step Solution
- Step 1: Write the proportion equation
2,629,348.64 : 3,933,645.76 = 1,991,489.84 : x - Step 2: Convert to fraction form
2,629,348.64/3,933,645.76 = 1,991,489.84/x - Step 3: Cross multiply
2,629,348.64x = 3,933,645.76 × 1,991,489.84 - Step 4: Simplify right side
2,629,348.64x = 7,833,815,565,199.08 - Step 5: Solve for x
x = 7,833,815,565,199.08/2,629,348.64 - Step 6: Final answer
x = 2,979,374.99
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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.